201656975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 303782640

約数和(自身を除く): 102125665

約数列:

[1, 5, 13, 17, 19, 25, 65, 85, 95, 113, 221, 247, 289, 323, 325, 425, 475, 565, 1105, 1235, 1445, 1469, 1615, 1921, 2147, 2825, 3757, 4199, 5491, 5525, 6175, 7225, 7345, 8075, 9605, 10735, 18785, 20995, 24973, 27455, 27911, 32657, 36499, 36725, 48025, 53675, 71383, 93925, 104975, 124865, 137275, 139555, 163285, 182495, 356915, 424541, 474487, 620483, 624325, 697775, 816425, 912475, 1784575, 2122705, 2372435, 3102415, 8066279, 10613525, 11862175, 15512075, 40331395, 201656975]

約数ペア:

[(1, 201656975), (5, 40331395), (13, 15512075), (17, 11862175), (19, 10613525), (25, 8066279), (65, 3102415), (85, 2372435), (95, 2122705), (113, 1784575), (221, 912475), (247, 816425), (289, 697775), (323, 624325), (325, 620483), (425, 474487), (475, 424541), (565, 356915), (1105, 182495), (1235, 163285), (1445, 139555), (1469, 137275), (1615, 124865), (1921, 104975), (2147, 93925), (2825, 71383), (3757, 53675), (4199, 48025), (5491, 36725), (5525, 36499), (6175, 32657), (7225, 27911), (7345, 27455), (8075, 24973), (9605, 20995), (10735, 18785)]