128557240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{12409}}^1$

素因数の和:12464

約数の個数: 64

約数和(自身を含む): 339537600

約数和(自身を除く): 210980360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 5180, 10360, 12409, 24818, 49636, 62045, 86863, 99272, 124090, 173726, 248180, 347452, 434315, 459133, 496360, 694904, 868630, 918266, 1737260, 1836532, 2295665, 3213931, 3474520, 3673064, 4591330, 6427862, 9182660, 12855724, 16069655, 18365320, 25711448, 32139310, 64278620, 128557240]

約数ペア:

[(1, 128557240), (2, 64278620), (4, 32139310), (5, 25711448), (7, 18365320), (8, 16069655), (10, 12855724), (14, 9182660), (20, 6427862), (28, 4591330), (35, 3673064), (37, 3474520), (40, 3213931), (56, 2295665), (70, 1836532), (74, 1737260), (140, 918266), (148, 868630), (185, 694904), (259, 496360), (280, 459133), (296, 434315), (370, 347452), (518, 248180), (740, 173726), (1036, 124090), (1295, 99272), (1480, 86863), (2072, 62045), (2590, 49636), (5180, 24818), (10360, 12409)]