15721736180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{10139}}^1$

素因数の和:10281

約数の個数: 96

約数和(自身を含む): 35487728640

約数和(自身を除く): 19765992460

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 61, 62, 82, 122, 124, 155, 164, 205, 244, 305, 310, 410, 610, 620, 820, 1220, 1271, 1891, 2501, 2542, 3782, 5002, 5084, 6355, 7564, 9455, 10004, 10139, 12505, 12710, 18910, 20278, 25010, 25420, 37820, 40556, 50020, 50695, 77531, 101390, 155062, 202780, 310124, 314309, 387655, 415699, 618479, 628618, 775310, 831398, 1236958, 1257236, 1550620, 1571545, 1662796, 2078495, 2473916, 3092395, 3143090, 4156990, 6184790, 6286180, 8313980, 12369580, 12886669, 19172849, 25357639, 25773338, 38345698, 50715278, 51546676, 64433345, 76691396, 95864245, 101430556, 126788195, 128866690, 191728490, 253576390, 257733380, 383456980, 507152780, 786086809, 1572173618, 3144347236, 3930434045, 7860868090, 15721736180]

約数ペア:

[(1, 15721736180), (2, 7860868090), (4, 3930434045), (5, 3144347236), (10, 1572173618), (20, 786086809), (31, 507152780), (41, 383456980), (61, 257733380), (62, 253576390), (82, 191728490), (122, 128866690), (124, 126788195), (155, 101430556), (164, 95864245), (205, 76691396), (244, 64433345), (305, 51546676), (310, 50715278), (410, 38345698), (610, 25773338), (620, 25357639), (820, 19172849), (1220, 12886669), (1271, 12369580), (1891, 8313980), (2501, 6286180), (2542, 6184790), (3782, 4156990), (5002, 3143090), (5084, 3092395), (6355, 2473916), (7564, 2078495), (9455, 1662796), (10004, 1571545), (10139, 1550620), (12505, 1257236), (12710, 1236958), (18910, 831398), (20278, 775310), (25010, 628618), (25420, 618479), (37820, 415699), (40556, 387655), (50020, 314309), (50695, 310124), (77531, 202780), (101390, 155062)]