78971880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 256

約数和(自身を含む): 278691840

約数和(自身を除く): 199719960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 31, 39, 40, 46, 52, 60, 62, 65, 69, 71, 78, 92, 93, 104, 115, 120, 124, 130, 138, 142, 155, 156, 184, 186, 195, 213, 230, 248, 260, 276, 284, 299, 310, 312, 345, 355, 372, 390, 403, 426, 460, 465, 520, 552, 568, 598, 620, 690, 710, 713, 744, 780, 806, 852, 897, 920, 923, 930, 1065, 1196, 1209, 1240, 1380, 1420, 1426, 1495, 1560, 1612, 1633, 1704, 1794, 1846, 1860, 2015, 2130, 2139, 2201, 2392, 2418, 2760, 2769, 2840, 2852, 2990, 3224, 3266, 3565, 3588, 3692, 3720, 4030, 4260, 4278, 4402, 4485, 4615, 4836, 4899, 5538, 5704, 5980, 6045, 6532, 6603, 7130, 7176, 7384, 8060, 8165, 8520, 8556, 8804, 8970, 9230, 9269, 9672, 9798, 10695, 11005, 11076, 11960, 12090, 13064, 13206, 13845, 14260, 16120, 16330, 17112, 17608, 17940, 18460, 18538, 19596, 21229, 21390, 22010, 22152, 24180, 24495, 26412, 27690, 27807, 28520, 28613, 32660, 33015, 35880, 36920, 37076, 39192, 42458, 42780, 44020, 46345, 48360, 48990, 50623, 52824, 55380, 55614, 57226, 63687, 65320, 66030, 74152, 84916, 85560, 85839, 88040, 92690, 97980, 101246, 106145, 110760, 111228, 114452, 127374, 132060, 139035, 143065, 151869, 169832, 171678, 185380, 195960, 202492, 212290, 222456, 228904, 253115, 254748, 264120, 278070, 286130, 303738, 318435, 343356, 370760, 404984, 424580, 429195, 506230, 509496, 556140, 572260, 607476, 636870, 658099, 686712, 759345, 849160, 858390, 1012460, 1112280, 1144520, 1214952, 1273740, 1316198, 1518690, 1716780, 1974297, 2024920, 2547480, 2632396, 3037380, 3290495, 3433560, 3948594, 5264792, 6074760, 6580990, 7897188, 9871485, 13161980, 15794376, 19742970, 26323960, 39485940, 78971880]

約数ペア:

[(1, 78971880), (2, 39485940), (3, 26323960), (4, 19742970), (5, 15794376), (6, 13161980), (8, 9871485), (10, 7897188), (12, 6580990), (13, 6074760), (15, 5264792), (20, 3948594), (23, 3433560), (24, 3290495), (26, 3037380), (30, 2632396), (31, 2547480), (39, 2024920), (40, 1974297), (46, 1716780), (52, 1518690), (60, 1316198), (62, 1273740), (65, 1214952), (69, 1144520), (71, 1112280), (78, 1012460), (92, 858390), (93, 849160), (104, 759345), (115, 686712), (120, 658099), (124, 636870), (130, 607476), (138, 572260), (142, 556140), (155, 509496), (156, 506230), (184, 429195), (186, 424580), (195, 404984), (213, 370760), (230, 343356), (248, 318435), (260, 303738), (276, 286130), (284, 278070), (299, 264120), (310, 254748), (312, 253115), (345, 228904), (355, 222456), (372, 212290), (390, 202492), (403, 195960), (426, 185380), (460, 171678), (465, 169832), (520, 151869), (552, 143065), (568, 139035), (598, 132060), (620, 127374), (690, 114452), (710, 111228), (713, 110760), (744, 106145), (780, 101246), (806, 97980), (852, 92690), (897, 88040), (920, 85839), (923, 85560), (930, 84916), (1065, 74152), (1196, 66030), (1209, 65320), (1240, 63687), (1380, 57226), (1420, 55614), (1426, 55380), (1495, 52824), (1560, 50623), (1612, 48990), (1633, 48360), (1704, 46345), (1794, 44020), (1846, 42780), (1860, 42458), (2015, 39192), (2130, 37076), (2139, 36920), (2201, 35880), (2392, 33015), (2418, 32660), (2760, 28613), (2769, 28520), (2840, 27807), (2852, 27690), (2990, 26412), (3224, 24495), (3266, 24180), (3565, 22152), (3588, 22010), (3692, 21390), (3720, 21229), (4030, 19596), (4260, 18538), (4278, 18460), (4402, 17940), (4485, 17608), (4615, 17112), (4836, 16330), (4899, 16120), (5538, 14260), (5704, 13845), (5980, 13206), (6045, 13064), (6532, 12090), (6603, 11960), (7130, 11076), (7176, 11005), (7384, 10695), (8060, 9798), (8165, 9672), (8520, 9269), (8556, 9230), (8804, 8970)]