20080570

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 40715136

約数和(自身を除く): 20634566

約数列:

[1, 2, 5, 10, 17, 34, 41, 43, 67, 82, 85, 86, 134, 170, 205, 215, 335, 410, 430, 670, 697, 731, 1139, 1394, 1462, 1763, 2278, 2747, 2881, 3485, 3526, 3655, 5494, 5695, 5762, 6970, 7310, 8815, 11390, 13735, 14405, 17630, 27470, 28810, 29971, 46699, 48977, 59942, 93398, 97954, 118121, 149855, 233495, 236242, 244885, 299710, 466990, 489770, 590605, 1181210, 2008057, 4016114, 10040285, 20080570]

約数ペア:

[(1, 20080570), (2, 10040285), (5, 4016114), (10, 2008057), (17, 1181210), (34, 590605), (41, 489770), (43, 466990), (67, 299710), (82, 244885), (85, 236242), (86, 233495), (134, 149855), (170, 118121), (205, 97954), (215, 93398), (335, 59942), (410, 48977), (430, 46699), (670, 29971), (697, 28810), (731, 27470), (1139, 17630), (1394, 14405), (1462, 13735), (1763, 11390), (2278, 8815), (2747, 7310), (2881, 6970), (3485, 5762), (3526, 5695), (3655, 5494)]