85720860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 272711712

約数和(自身を除く): 186990852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 61, 74, 90, 111, 122, 148, 180, 183, 185, 211, 222, 244, 305, 333, 366, 370, 422, 444, 549, 555, 610, 633, 666, 732, 740, 844, 915, 1055, 1098, 1110, 1220, 1266, 1332, 1665, 1830, 1899, 2110, 2196, 2220, 2257, 2532, 2745, 3165, 3330, 3660, 3798, 4220, 4514, 5490, 6330, 6660, 6771, 7596, 7807, 9028, 9495, 10980, 11285, 12660, 12871, 13542, 15614, 18990, 20313, 22570, 23421, 25742, 27084, 31228, 33855, 37980, 38613, 39035, 40626, 45140, 46842, 51484, 64355, 67710, 70263, 77226, 78070, 81252, 93684, 101565, 115839, 117105, 128710, 135420, 140526, 154452, 156140, 193065, 203130, 231678, 234210, 257420, 281052, 351315, 386130, 406260, 463356, 468420, 476227, 579195, 702630, 772260, 952454, 1158390, 1405260, 1428681, 1904908, 2316780, 2381135, 2857362, 4286043, 4762270, 5714724, 7143405, 8572086, 9524540, 14286810, 17144172, 21430215, 28573620, 42860430, 85720860]

約数ペア:

[(1, 85720860), (2, 42860430), (3, 28573620), (4, 21430215), (5, 17144172), (6, 14286810), (9, 9524540), (10, 8572086), (12, 7143405), (15, 5714724), (18, 4762270), (20, 4286043), (30, 2857362), (36, 2381135), (37, 2316780), (45, 1904908), (60, 1428681), (61, 1405260), (74, 1158390), (90, 952454), (111, 772260), (122, 702630), (148, 579195), (180, 476227), (183, 468420), (185, 463356), (211, 406260), (222, 386130), (244, 351315), (305, 281052), (333, 257420), (366, 234210), (370, 231678), (422, 203130), (444, 193065), (549, 156140), (555, 154452), (610, 140526), (633, 135420), (666, 128710), (732, 117105), (740, 115839), (844, 101565), (915, 93684), (1055, 81252), (1098, 78070), (1110, 77226), (1220, 70263), (1266, 67710), (1332, 64355), (1665, 51484), (1830, 46842), (1899, 45140), (2110, 40626), (2196, 39035), (2220, 38613), (2257, 37980), (2532, 33855), (2745, 31228), (3165, 27084), (3330, 25742), (3660, 23421), (3798, 22570), (4220, 20313), (4514, 18990), (5490, 15614), (6330, 13542), (6660, 12871), (6771, 12660), (7596, 11285), (7807, 10980), (9028, 9495)]