20161900840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{132679}}^1$

素因数の和:132850

約数の個数: 64

約数和(自身を含む): 47287152000

約数和(自身を除く): 27125251160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 131, 145, 232, 262, 290, 524, 580, 655, 1048, 1160, 1310, 2620, 3799, 5240, 7598, 15196, 18995, 30392, 37990, 75980, 132679, 151960, 265358, 530716, 663395, 1061432, 1326790, 2653580, 3847691, 5307160, 7695382, 15390764, 17380949, 19238455, 30781528, 34761898, 38476910, 69523796, 76953820, 86904745, 139047592, 153907640, 173809490, 347618980, 504047521, 695237960, 1008095042, 2016190084, 2520237605, 4032380168, 5040475210, 10080950420, 20161900840]

約数ペア:

[(1, 20161900840), (2, 10080950420), (4, 5040475210), (5, 4032380168), (8, 2520237605), (10, 2016190084), (20, 1008095042), (29, 695237960), (40, 504047521), (58, 347618980), (116, 173809490), (131, 153907640), (145, 139047592), (232, 86904745), (262, 76953820), (290, 69523796), (524, 38476910), (580, 34761898), (655, 30781528), (1048, 19238455), (1160, 17380949), (1310, 15390764), (2620, 7695382), (3799, 5307160), (5240, 3847691), (7598, 2653580), (15196, 1326790), (18995, 1061432), (30392, 663395), (37990, 530716), (75980, 265358), (132679, 151960)]