201720230

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 388644480

約数和(自身を除く): 186924250

約数列:

[1, 2, 5, 10, 29, 58, 71, 97, 101, 142, 145, 194, 202, 290, 355, 485, 505, 710, 970, 1010, 2059, 2813, 2929, 4118, 5626, 5858, 6887, 7171, 9797, 10295, 13774, 14065, 14342, 14645, 19594, 20590, 28130, 29290, 34435, 35855, 48985, 68870, 71710, 97970, 199723, 207959, 284113, 399446, 415918, 568226, 695587, 998615, 1039795, 1391174, 1420565, 1997230, 2079590, 2841130, 3477935, 6955870, 20172023, 40344046, 100860115, 201720230]

約数ペア:

[(1, 201720230), (2, 100860115), (5, 40344046), (10, 20172023), (29, 6955870), (58, 3477935), (71, 2841130), (97, 2079590), (101, 1997230), (142, 1420565), (145, 1391174), (194, 1039795), (202, 998615), (290, 695587), (355, 568226), (485, 415918), (505, 399446), (710, 284113), (970, 207959), (1010, 199723), (2059, 97970), (2813, 71710), (2929, 68870), (4118, 48985), (5626, 35855), (5858, 34435), (6887, 29290), (7171, 28130), (9797, 20590), (10295, 19594), (13774, 14645), (14065, 14342)]