20187098715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{213383}}^1$

素因数の和:213468

約数の個数: 64

約数和(自身を含む): 39822575616

約数和(自身を除く): 19635476901

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 53, 85, 105, 119, 159, 255, 265, 357, 371, 595, 795, 901, 1113, 1785, 1855, 2703, 4505, 5565, 6307, 13515, 18921, 31535, 94605, 213383, 640149, 1066915, 1493681, 3200745, 3627511, 4481043, 7468405, 10882533, 11309299, 18137555, 22405215, 25392577, 33927897, 54412665, 56546495, 76177731, 79165093, 126962885, 169639485, 192258083, 237495279, 380888655, 395825465, 576774249, 961290415, 1187476395, 1345806581, 2883871245, 4037419743, 6729032905, 20187098715]

約数ペア:

[(1, 20187098715), (3, 6729032905), (5, 4037419743), (7, 2883871245), (15, 1345806581), (17, 1187476395), (21, 961290415), (35, 576774249), (51, 395825465), (53, 380888655), (85, 237495279), (105, 192258083), (119, 169639485), (159, 126962885), (255, 79165093), (265, 76177731), (357, 56546495), (371, 54412665), (595, 33927897), (795, 25392577), (901, 22405215), (1113, 18137555), (1785, 11309299), (1855, 10882533), (2703, 7468405), (4505, 4481043), (5565, 3627511), (6307, 3200745), (13515, 1493681), (18921, 1066915), (31535, 640149), (94605, 213383)]