78120640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:330

約数の個数: 112

約数和(自身を含む): 203545440

約数和(自身を除く): 125424800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 89, 104, 130, 160, 178, 208, 211, 260, 320, 356, 416, 422, 445, 520, 712, 832, 844, 890, 1040, 1055, 1157, 1424, 1688, 1780, 2080, 2110, 2314, 2743, 2848, 3376, 3560, 4160, 4220, 4628, 5486, 5696, 5785, 6752, 7120, 8440, 9256, 10972, 11570, 13504, 13715, 14240, 16880, 18512, 18779, 21944, 23140, 27430, 28480, 33760, 37024, 37558, 43888, 46280, 54860, 67520, 74048, 75116, 87776, 92560, 93895, 109720, 150232, 175552, 185120, 187790, 219440, 244127, 300464, 370240, 375580, 438880, 488254, 600928, 751160, 877760, 976508, 1201856, 1220635, 1502320, 1953016, 2441270, 3004640, 3906032, 4882540, 6009280, 7812064, 9765080, 15624128, 19530160, 39060320, 78120640]

約数ペア:

[(1, 78120640), (2, 39060320), (4, 19530160), (5, 15624128), (8, 9765080), (10, 7812064), (13, 6009280), (16, 4882540), (20, 3906032), (26, 3004640), (32, 2441270), (40, 1953016), (52, 1502320), (64, 1220635), (65, 1201856), (80, 976508), (89, 877760), (104, 751160), (130, 600928), (160, 488254), (178, 438880), (208, 375580), (211, 370240), (260, 300464), (320, 244127), (356, 219440), (416, 187790), (422, 185120), (445, 175552), (520, 150232), (712, 109720), (832, 93895), (844, 92560), (890, 87776), (1040, 75116), (1055, 74048), (1157, 67520), (1424, 54860), (1688, 46280), (1780, 43888), (2080, 37558), (2110, 37024), (2314, 33760), (2743, 28480), (2848, 27430), (3376, 23140), (3560, 21944), (4160, 18779), (4220, 18512), (4628, 16880), (5486, 14240), (5696, 13715), (5785, 13504), (6752, 11570), (7120, 10972), (8440, 9256)]