81974970

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3943}}^1$

素因数の和:3977

約数の個数: 128

約数和(自身を含む): 272609280

約数和(自身を除く): 190634310

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 54, 55, 63, 66, 70, 77, 90, 99, 105, 110, 126, 135, 154, 165, 189, 198, 210, 231, 270, 297, 315, 330, 378, 385, 462, 495, 594, 630, 693, 770, 945, 990, 1155, 1386, 1485, 1890, 2079, 2310, 2970, 3465, 3943, 4158, 6930, 7886, 10395, 11829, 19715, 20790, 23658, 27601, 35487, 39430, 43373, 55202, 59145, 70974, 82803, 86746, 106461, 118290, 130119, 138005, 165606, 177435, 212922, 216865, 248409, 260238, 276010, 303611, 354870, 390357, 414015, 433730, 496818, 532305, 607222, 650595, 745227, 780714, 828030, 910833, 1064610, 1171071, 1242045, 1301190, 1490454, 1518055, 1821666, 1951785, 2342142, 2484090, 2732499, 3036110, 3726135, 3903570, 4554165, 5464998, 5855355, 7452270, 8197497, 9108330, 11710710, 13662495, 16394994, 27324990, 40987485, 81974970]

約数ペア:

[(1, 81974970), (2, 40987485), (3, 27324990), (5, 16394994), (6, 13662495), (7, 11710710), (9, 9108330), (10, 8197497), (11, 7452270), (14, 5855355), (15, 5464998), (18, 4554165), (21, 3903570), (22, 3726135), (27, 3036110), (30, 2732499), (33, 2484090), (35, 2342142), (42, 1951785), (45, 1821666), (54, 1518055), (55, 1490454), (63, 1301190), (66, 1242045), (70, 1171071), (77, 1064610), (90, 910833), (99, 828030), (105, 780714), (110, 745227), (126, 650595), (135, 607222), (154, 532305), (165, 496818), (189, 433730), (198, 414015), (210, 390357), (231, 354870), (270, 303611), (297, 276010), (315, 260238), (330, 248409), (378, 216865), (385, 212922), (462, 177435), (495, 165606), (594, 138005), (630, 130119), (693, 118290), (770, 106461), (945, 86746), (990, 82803), (1155, 70974), (1386, 59145), (1485, 55202), (1890, 43373), (2079, 39430), (2310, 35487), (2970, 27601), (3465, 23658), (3943, 20790), (4158, 19715), (6930, 11829), (7886, 10395)]