157105840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{349}}^1$

素因数の和:710

約数の個数: 80

約数和(自身を含む): 389037600

約数和(自身を除く): 231931760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 331, 340, 349, 662, 680, 698, 1324, 1360, 1396, 1655, 1745, 2648, 2792, 3310, 3490, 5296, 5584, 5627, 5933, 6620, 6980, 11254, 11866, 13240, 13960, 22508, 23732, 26480, 27920, 28135, 29665, 45016, 47464, 56270, 59330, 90032, 94928, 112540, 115519, 118660, 225080, 231038, 237320, 450160, 462076, 474640, 577595, 924152, 1155190, 1848304, 1963823, 2310380, 3927646, 4620760, 7855292, 9241520, 9819115, 15710584, 19638230, 31421168, 39276460, 78552920, 157105840]

約数ペア:

[(1, 157105840), (2, 78552920), (4, 39276460), (5, 31421168), (8, 19638230), (10, 15710584), (16, 9819115), (17, 9241520), (20, 7855292), (34, 4620760), (40, 3927646), (68, 2310380), (80, 1963823), (85, 1848304), (136, 1155190), (170, 924152), (272, 577595), (331, 474640), (340, 462076), (349, 450160), (662, 237320), (680, 231038), (698, 225080), (1324, 118660), (1360, 115519), (1396, 112540), (1655, 94928), (1745, 90032), (2648, 59330), (2792, 56270), (3310, 47464), (3490, 45016), (5296, 29665), (5584, 28135), (5627, 27920), (5933, 26480), (6620, 23732), (6980, 22508), (11254, 13960), (11866, 13240)]