88213240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 204120000

約数和(自身を除く): 115906760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 89, 142, 178, 284, 349, 355, 356, 445, 568, 698, 710, 712, 890, 1396, 1420, 1745, 1780, 2792, 2840, 3490, 3560, 6319, 6980, 12638, 13960, 24779, 25276, 31061, 31595, 49558, 50552, 62122, 63190, 99116, 123895, 124244, 126380, 155305, 198232, 247790, 248488, 252760, 310610, 495580, 621220, 991160, 1242440, 2205331, 4410662, 8821324, 11026655, 17642648, 22053310, 44106620, 88213240]

約数ペア:

[(1, 88213240), (2, 44106620), (4, 22053310), (5, 17642648), (8, 11026655), (10, 8821324), (20, 4410662), (40, 2205331), (71, 1242440), (89, 991160), (142, 621220), (178, 495580), (284, 310610), (349, 252760), (355, 248488), (356, 247790), (445, 198232), (568, 155305), (698, 126380), (710, 124244), (712, 123895), (890, 99116), (1396, 63190), (1420, 62122), (1745, 50552), (1780, 49558), (2792, 31595), (2840, 31061), (3490, 25276), (3560, 24779), (6319, 13960), (6980, 12638)]