230781980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:220

約数の個数: 192

約数和(自身を含む): 623185920

約数和(自身を除く): 392403940

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 26, 31, 38, 44, 52, 55, 62, 65, 76, 95, 110, 124, 130, 137, 143, 155, 190, 209, 220, 247, 260, 274, 286, 310, 341, 380, 403, 418, 494, 548, 572, 589, 620, 682, 685, 715, 806, 836, 988, 1045, 1178, 1235, 1364, 1370, 1430, 1507, 1612, 1705, 1781, 2015, 2090, 2356, 2470, 2603, 2717, 2740, 2860, 2945, 3014, 3410, 3562, 4030, 4180, 4247, 4433, 4940, 5206, 5434, 5890, 6028, 6479, 6820, 7124, 7535, 7657, 8060, 8494, 8866, 8905, 10412, 10868, 11780, 12958, 13015, 13585, 15070, 15314, 16988, 17732, 17810, 19591, 21235, 22165, 25916, 26030, 27170, 28633, 30140, 30628, 32395, 33839, 35620, 38285, 39182, 42470, 44330, 46717, 52060, 54340, 55211, 57266, 64790, 67678, 76570, 78364, 80693, 84227, 84940, 88660, 93434, 97955, 110422, 114532, 129580, 135356, 143165, 153140, 161386, 168454, 169195, 186868, 195910, 220844, 233585, 276055, 286330, 322772, 336908, 338390, 372229, 391820, 403465, 421135, 467170, 552110, 572660, 607321, 676780, 744458, 806930, 842270, 887623, 934340, 1049009, 1104220, 1214642, 1488916, 1613860, 1684540, 1775246, 1861145, 2098018, 2429284, 3036605, 3550492, 3722290, 4196036, 4438115, 5245045, 6073210, 7444580, 8876230, 10490090, 11539099, 12146420, 17752460, 20980180, 23078198, 46156396, 57695495, 115390990, 230781980]

約数ペア:

[(1, 230781980), (2, 115390990), (4, 57695495), (5, 46156396), (10, 23078198), (11, 20980180), (13, 17752460), (19, 12146420), (20, 11539099), (22, 10490090), (26, 8876230), (31, 7444580), (38, 6073210), (44, 5245045), (52, 4438115), (55, 4196036), (62, 3722290), (65, 3550492), (76, 3036605), (95, 2429284), (110, 2098018), (124, 1861145), (130, 1775246), (137, 1684540), (143, 1613860), (155, 1488916), (190, 1214642), (209, 1104220), (220, 1049009), (247, 934340), (260, 887623), (274, 842270), (286, 806930), (310, 744458), (341, 676780), (380, 607321), (403, 572660), (418, 552110), (494, 467170), (548, 421135), (572, 403465), (589, 391820), (620, 372229), (682, 338390), (685, 336908), (715, 322772), (806, 286330), (836, 276055), (988, 233585), (1045, 220844), (1178, 195910), (1235, 186868), (1364, 169195), (1370, 168454), (1430, 161386), (1507, 153140), (1612, 143165), (1705, 135356), (1781, 129580), (2015, 114532), (2090, 110422), (2356, 97955), (2470, 93434), (2603, 88660), (2717, 84940), (2740, 84227), (2860, 80693), (2945, 78364), (3014, 76570), (3410, 67678), (3562, 64790), (4030, 57266), (4180, 55211), (4247, 54340), (4433, 52060), (4940, 46717), (5206, 44330), (5434, 42470), (5890, 39182), (6028, 38285), (6479, 35620), (6820, 33839), (7124, 32395), (7535, 30628), (7657, 30140), (8060, 28633), (8494, 27170), (8866, 26030), (8905, 25916), (10412, 22165), (10868, 21235), (11780, 19591), (12958, 17810), (13015, 17732), (13585, 16988), (15070, 15314)]