2019988526075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{547}}^1\times {\mathrm{39317}}^1$

素因数の和:39921

約数の個数: 72

約数和(自身を含む): 2870781122832

約数和(自身を除く): 850792596757

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 289, 325, 425, 547, 1105, 1445, 2735, 3757, 5525, 7111, 7225, 9299, 13675, 18785, 35555, 39317, 46495, 93925, 120887, 158083, 177775, 196585, 232475, 511121, 604435, 668389, 790415, 982925, 2055079, 2555605, 3022175, 3341945, 3952075, 8689057, 10275395, 11362613, 12778025, 16709725, 21506399, 43445285, 51376975, 56813065, 107531995, 147713969, 217226425, 279583187, 284065325, 365608783, 537659975, 738569845, 1397915935, 1828043915, 3692849225, 4752914179, 6215349311, 6989579675, 9140219575, 23764570895, 31076746555, 80799541043, 118822854475, 155383732775, 403997705215, 2019988526075]

約数ペア:

[(1, 2019988526075), (5, 403997705215), (13, 155383732775), (17, 118822854475), (25, 80799541043), (65, 31076746555), (85, 23764570895), (221, 9140219575), (289, 6989579675), (325, 6215349311), (425, 4752914179), (547, 3692849225), (1105, 1828043915), (1445, 1397915935), (2735, 738569845), (3757, 537659975), (5525, 365608783), (7111, 284065325), (7225, 279583187), (9299, 217226425), (13675, 147713969), (18785, 107531995), (35555, 56813065), (39317, 51376975), (46495, 43445285), (93925, 21506399), (120887, 16709725), (158083, 12778025), (177775, 11362613), (196585, 10275395), (232475, 8689057), (511121, 3952075), (604435, 3341945), (668389, 3022175), (790415, 2555605), (982925, 2055079)]