78619720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 199065600

約数和(自身を除く): 120445880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 47, 62, 71, 76, 94, 95, 124, 142, 152, 155, 188, 190, 235, 248, 284, 310, 355, 376, 380, 470, 568, 589, 620, 710, 760, 893, 940, 1178, 1240, 1349, 1420, 1457, 1786, 1880, 2201, 2356, 2698, 2840, 2914, 2945, 3337, 3572, 4402, 4465, 4712, 5396, 5828, 5890, 6674, 6745, 7144, 7285, 8804, 8930, 10792, 11005, 11656, 11780, 13348, 13490, 14570, 16685, 17608, 17860, 22010, 23560, 26696, 26980, 27683, 29140, 33370, 35720, 41819, 44020, 53960, 55366, 58280, 63403, 66740, 83638, 88040, 103447, 110732, 126806, 133480, 138415, 167276, 206894, 209095, 221464, 253612, 276830, 317015, 334552, 413788, 418190, 507224, 517235, 553660, 634030, 827576, 836380, 1034470, 1107320, 1268060, 1672760, 1965493, 2068940, 2536120, 3930986, 4137880, 7861972, 9827465, 15723944, 19654930, 39309860, 78619720]

約数ペア:

[(1, 78619720), (2, 39309860), (4, 19654930), (5, 15723944), (8, 9827465), (10, 7861972), (19, 4137880), (20, 3930986), (31, 2536120), (38, 2068940), (40, 1965493), (47, 1672760), (62, 1268060), (71, 1107320), (76, 1034470), (94, 836380), (95, 827576), (124, 634030), (142, 553660), (152, 517235), (155, 507224), (188, 418190), (190, 413788), (235, 334552), (248, 317015), (284, 276830), (310, 253612), (355, 221464), (376, 209095), (380, 206894), (470, 167276), (568, 138415), (589, 133480), (620, 126806), (710, 110732), (760, 103447), (893, 88040), (940, 83638), (1178, 66740), (1240, 63403), (1349, 58280), (1420, 55366), (1457, 53960), (1786, 44020), (1880, 41819), (2201, 35720), (2356, 33370), (2698, 29140), (2840, 27683), (2914, 26980), (2945, 26696), (3337, 23560), (3572, 22010), (4402, 17860), (4465, 17608), (4712, 16685), (5396, 14570), (5828, 13490), (5890, 13348), (6674, 11780), (6745, 11656), (7144, 11005), (7285, 10792), (8804, 8930)]