261394770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{181}}^1$

素因数の和:257

約数の個数: 192

約数和(自身を含む): 811609344

約数和(自身を除く): 550214574

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 23, 26, 30, 35, 39, 42, 46, 65, 69, 70, 78, 91, 105, 115, 130, 138, 161, 181, 182, 195, 210, 230, 273, 299, 322, 345, 362, 390, 455, 483, 529, 543, 546, 598, 690, 805, 897, 905, 910, 966, 1058, 1086, 1267, 1365, 1495, 1587, 1610, 1794, 1810, 2093, 2353, 2415, 2534, 2645, 2715, 2730, 2990, 3174, 3703, 3801, 4163, 4186, 4485, 4706, 4830, 5290, 5430, 6279, 6335, 6877, 7059, 7406, 7602, 7935, 8326, 8970, 10465, 11109, 11765, 12489, 12558, 12670, 13754, 14118, 15870, 16471, 18515, 19005, 20631, 20815, 20930, 22218, 23530, 24978, 29141, 31395, 32942, 34385, 35295, 37030, 38010, 41262, 41630, 48139, 49413, 54119, 55545, 58282, 62445, 62790, 68770, 70590, 82355, 87423, 95749, 96278, 98826, 103155, 108238, 111090, 124890, 144417, 145705, 162357, 164710, 174846, 191498, 206310, 240695, 247065, 270595, 287247, 288834, 291410, 324714, 378833, 437115, 478745, 481390, 494130, 541190, 574494, 670243, 722085, 757666, 811785, 874230, 957490, 1136499, 1244737, 1340486, 1436235, 1444170, 1623570, 1894165, 2010729, 2272998, 2489474, 2872470, 3351215, 3734211, 3788330, 4021458, 5682495, 6223685, 6702430, 7468422, 8713159, 10053645, 11364990, 12447370, 17426318, 18671055, 20107290, 26139477, 37342110, 43565795, 52278954, 87131590, 130697385, 261394770]

約数ペア:

[(1, 261394770), (2, 130697385), (3, 87131590), (5, 52278954), (6, 43565795), (7, 37342110), (10, 26139477), (13, 20107290), (14, 18671055), (15, 17426318), (21, 12447370), (23, 11364990), (26, 10053645), (30, 8713159), (35, 7468422), (39, 6702430), (42, 6223685), (46, 5682495), (65, 4021458), (69, 3788330), (70, 3734211), (78, 3351215), (91, 2872470), (105, 2489474), (115, 2272998), (130, 2010729), (138, 1894165), (161, 1623570), (181, 1444170), (182, 1436235), (195, 1340486), (210, 1244737), (230, 1136499), (273, 957490), (299, 874230), (322, 811785), (345, 757666), (362, 722085), (390, 670243), (455, 574494), (483, 541190), (529, 494130), (543, 481390), (546, 478745), (598, 437115), (690, 378833), (805, 324714), (897, 291410), (905, 288834), (910, 287247), (966, 270595), (1058, 247065), (1086, 240695), (1267, 206310), (1365, 191498), (1495, 174846), (1587, 164710), (1610, 162357), (1794, 145705), (1810, 144417), (2093, 124890), (2353, 111090), (2415, 108238), (2534, 103155), (2645, 98826), (2715, 96278), (2730, 95749), (2990, 87423), (3174, 82355), (3703, 70590), (3801, 68770), (4163, 62790), (4186, 62445), (4485, 58282), (4706, 55545), (4830, 54119), (5290, 49413), (5430, 48139), (6279, 41630), (6335, 41262), (6877, 38010), (7059, 37030), (7406, 35295), (7602, 34385), (7935, 32942), (8326, 31395), (8970, 29141), (10465, 24978), (11109, 23530), (11765, 22218), (12489, 20930), (12558, 20815), (12670, 20631), (13754, 19005), (14118, 18515), (15870, 16471)]