70820120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:289

約数の個数: 128

約数和(自身を含む): 193536000

約数和(自身を除く): 122715880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 41, 56, 62, 70, 82, 124, 140, 155, 164, 199, 205, 217, 248, 280, 287, 310, 328, 398, 410, 434, 574, 620, 796, 820, 868, 995, 1085, 1148, 1240, 1271, 1393, 1435, 1592, 1640, 1736, 1990, 2170, 2296, 2542, 2786, 2870, 3980, 4340, 5084, 5572, 5740, 6169, 6355, 6965, 7960, 8159, 8680, 8897, 10168, 11144, 11480, 12338, 12710, 13930, 16318, 17794, 24676, 25420, 27860, 30845, 32636, 35588, 40795, 43183, 44485, 49352, 50840, 55720, 57113, 61690, 65272, 71176, 81590, 86366, 88970, 114226, 123380, 163180, 172732, 177940, 215915, 228452, 246760, 252929, 285565, 326360, 345464, 355880, 431830, 456904, 505858, 571130, 863660, 1011716, 1142260, 1264645, 1727320, 1770503, 2023432, 2284520, 2529290, 3541006, 5058580, 7082012, 8852515, 10117160, 14164024, 17705030, 35410060, 70820120]

約数ペア:

[(1, 70820120), (2, 35410060), (4, 17705030), (5, 14164024), (7, 10117160), (8, 8852515), (10, 7082012), (14, 5058580), (20, 3541006), (28, 2529290), (31, 2284520), (35, 2023432), (40, 1770503), (41, 1727320), (56, 1264645), (62, 1142260), (70, 1011716), (82, 863660), (124, 571130), (140, 505858), (155, 456904), (164, 431830), (199, 355880), (205, 345464), (217, 326360), (248, 285565), (280, 252929), (287, 246760), (310, 228452), (328, 215915), (398, 177940), (410, 172732), (434, 163180), (574, 123380), (620, 114226), (796, 88970), (820, 86366), (868, 81590), (995, 71176), (1085, 65272), (1148, 61690), (1240, 57113), (1271, 55720), (1393, 50840), (1435, 49352), (1592, 44485), (1640, 43183), (1736, 40795), (1990, 35588), (2170, 32636), (2296, 30845), (2542, 27860), (2786, 25420), (2870, 24676), (3980, 17794), (4340, 16318), (5084, 13930), (5572, 12710), (5740, 12338), (6169, 11480), (6355, 11144), (6965, 10168), (7960, 8897), (8159, 8680)]