85756840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 224532000

約数和(自身を除く): 138775160

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 89, 104, 109, 130, 136, 170, 178, 218, 221, 260, 340, 356, 436, 442, 445, 520, 545, 680, 712, 872, 884, 890, 1090, 1105, 1157, 1417, 1513, 1768, 1780, 1853, 2180, 2210, 2314, 2834, 3026, 3560, 3706, 4360, 4420, 4628, 5668, 5785, 6052, 7085, 7412, 7565, 8840, 9256, 9265, 9701, 11336, 11570, 12104, 14170, 14824, 15130, 18530, 19402, 19669, 23140, 24089, 28340, 30260, 37060, 38804, 39338, 46280, 48178, 48505, 56680, 60520, 74120, 77608, 78676, 96356, 97010, 98345, 120445, 126113, 157352, 164917, 192712, 194020, 196690, 240890, 252226, 329834, 388040, 393380, 481780, 504452, 630565, 659668, 786760, 824585, 963560, 1008904, 1261130, 1319336, 1649170, 2143921, 2522260, 3298340, 4287842, 5044520, 6596680, 8575684, 10719605, 17151368, 21439210, 42878420, 85756840]

約数ペア:

[(1, 85756840), (2, 42878420), (4, 21439210), (5, 17151368), (8, 10719605), (10, 8575684), (13, 6596680), (17, 5044520), (20, 4287842), (26, 3298340), (34, 2522260), (40, 2143921), (52, 1649170), (65, 1319336), (68, 1261130), (85, 1008904), (89, 963560), (104, 824585), (109, 786760), (130, 659668), (136, 630565), (170, 504452), (178, 481780), (218, 393380), (221, 388040), (260, 329834), (340, 252226), (356, 240890), (436, 196690), (442, 194020), (445, 192712), (520, 164917), (545, 157352), (680, 126113), (712, 120445), (872, 98345), (884, 97010), (890, 96356), (1090, 78676), (1105, 77608), (1157, 74120), (1417, 60520), (1513, 56680), (1768, 48505), (1780, 48178), (1853, 46280), (2180, 39338), (2210, 38804), (2314, 37060), (2834, 30260), (3026, 28340), (3560, 24089), (3706, 23140), (4360, 19669), (4420, 19402), (4628, 18530), (5668, 15130), (5785, 14824), (6052, 14170), (7085, 12104), (7412, 11570), (7565, 11336), (8840, 9701), (9256, 9265)]