99911720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{421}}^1$

素因数の和:798

約数の個数: 64

約数和(自身を含む): 239274000

約数和(自身を除く): 139362280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 349, 421, 680, 698, 842, 1396, 1684, 1745, 2105, 2792, 3368, 3490, 4210, 5933, 6980, 7157, 8420, 11866, 13960, 14314, 16840, 23732, 28628, 29665, 35785, 47464, 57256, 59330, 71570, 118660, 143140, 146929, 237320, 286280, 293858, 587716, 734645, 1175432, 1469290, 2497793, 2938580, 4995586, 5877160, 9991172, 12488965, 19982344, 24977930, 49955860, 99911720]

約数ペア:

[(1, 99911720), (2, 49955860), (4, 24977930), (5, 19982344), (8, 12488965), (10, 9991172), (17, 5877160), (20, 4995586), (34, 2938580), (40, 2497793), (68, 1469290), (85, 1175432), (136, 734645), (170, 587716), (340, 293858), (349, 286280), (421, 237320), (680, 146929), (698, 143140), (842, 118660), (1396, 71570), (1684, 59330), (1745, 57256), (2105, 47464), (2792, 35785), (3368, 29665), (3490, 28628), (4210, 23732), (5933, 16840), (6980, 14314), (7157, 13960), (8420, 11866)]