8721567375

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:482

約数の個数: 128

約数和(自身を含む): 15895885824

約数和(自身を除く): 7174318449

約数列:

[1, 3, 5, 15, 17, 25, 51, 53, 75, 83, 85, 125, 159, 249, 255, 265, 311, 375, 415, 425, 795, 901, 933, 1245, 1275, 1325, 1411, 1555, 2075, 2125, 2703, 3975, 4233, 4399, 4505, 4665, 5287, 6225, 6375, 6625, 7055, 7775, 10375, 13197, 13515, 15861, 16483, 19875, 21165, 21995, 22525, 23325, 25813, 26435, 31125, 35275, 38875, 49449, 65985, 67575, 74783, 77439, 79305, 82415, 105825, 109975, 112625, 116625, 129065, 132175, 176375, 224349, 247245, 280211, 329925, 337875, 373915, 387195, 396525, 412075, 438821, 529125, 549875, 645325, 660875, 840633, 1121745, 1236225, 1316463, 1368089, 1401055, 1649625, 1869575, 1935975, 1982625, 2060375, 2194105, 3226625, 4104267, 4203165, 5608725, 6181125, 6582315, 6840445, 7005275, 9347875, 9679875, 10970525, 20521335, 21015825, 23257513, 28043625, 32911575, 34202225, 35026375, 54852625, 69772539, 102606675, 105079125, 116287565, 164557875, 171011125, 348862695, 513033375, 581437825, 1744313475, 2907189125, 8721567375]

約数ペア:

[(1, 8721567375), (3, 2907189125), (5, 1744313475), (15, 581437825), (17, 513033375), (25, 348862695), (51, 171011125), (53, 164557875), (75, 116287565), (83, 105079125), (85, 102606675), (125, 69772539), (159, 54852625), (249, 35026375), (255, 34202225), (265, 32911575), (311, 28043625), (375, 23257513), (415, 21015825), (425, 20521335), (795, 10970525), (901, 9679875), (933, 9347875), (1245, 7005275), (1275, 6840445), (1325, 6582315), (1411, 6181125), (1555, 5608725), (2075, 4203165), (2125, 4104267), (2703, 3226625), (3975, 2194105), (4233, 2060375), (4399, 1982625), (4505, 1935975), (4665, 1869575), (5287, 1649625), (6225, 1401055), (6375, 1368089), (6625, 1316463), (7055, 1236225), (7775, 1121745), (10375, 840633), (13197, 660875), (13515, 645325), (15861, 549875), (16483, 529125), (19875, 438821), (21165, 412075), (21995, 396525), (22525, 387195), (23325, 373915), (25813, 337875), (26435, 329925), (31125, 280211), (35275, 247245), (38875, 224349), (49449, 176375), (65985, 132175), (67575, 129065), (74783, 116625), (77439, 112625), (79305, 109975), (82415, 105825)]