20161854825

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{54319}}^1$

素因数の和:54447

約数の個数: 72

約数和(自身を含む): 39161243520

約数和(自身を除く): 18999388695

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 101, 105, 147, 175, 245, 303, 505, 525, 707, 735, 1225, 1515, 2121, 2525, 3535, 3675, 4949, 7575, 10605, 14847, 17675, 24745, 53025, 54319, 74235, 123725, 162957, 271595, 371175, 380233, 814785, 1140699, 1357975, 1901165, 2661631, 4073925, 5486219, 5703495, 7984893, 9505825, 13308155, 16458657, 27431095, 28517475, 38403533, 39924465, 66540775, 82293285, 115210599, 137155475, 192017665, 199622325, 268824731, 411466425, 576052995, 806474193, 960088325, 1344123655, 2880264975, 4032370965, 6720618275, 20161854825]

約数ペア:

[(1, 20161854825), (3, 6720618275), (5, 4032370965), (7, 2880264975), (15, 1344123655), (21, 960088325), (25, 806474193), (35, 576052995), (49, 411466425), (75, 268824731), (101, 199622325), (105, 192017665), (147, 137155475), (175, 115210599), (245, 82293285), (303, 66540775), (505, 39924465), (525, 38403533), (707, 28517475), (735, 27431095), (1225, 16458657), (1515, 13308155), (2121, 9505825), (2525, 7984893), (3535, 5703495), (3675, 5486219), (4949, 4073925), (7575, 2661631), (10605, 1901165), (14847, 1357975), (17675, 1140699), (24745, 814785), (53025, 380233), (54319, 371175), (74235, 271595), (123725, 162957)]