20170072820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1\times {\mathrm{65449}}^1$

素因数の和:66288

約数の個数: 48

約数和(自身を含む): 44642136000

約数和(自身を除く): 24472063180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 811, 1622, 3244, 4055, 8110, 15409, 16220, 30818, 61636, 65449, 77045, 130898, 154090, 261796, 308180, 327245, 654490, 1243531, 1308980, 2487062, 4974124, 6217655, 12435310, 24870620, 53079139, 106158278, 212316556, 265395695, 530791390, 1008503641, 1061582780, 2017007282, 4034014564, 5042518205, 10085036410, 20170072820]

約数ペア:

[(1, 20170072820), (2, 10085036410), (4, 5042518205), (5, 4034014564), (10, 2017007282), (19, 1061582780), (20, 1008503641), (38, 530791390), (76, 265395695), (95, 212316556), (190, 106158278), (380, 53079139), (811, 24870620), (1622, 12435310), (3244, 6217655), (4055, 4974124), (8110, 2487062), (15409, 1308980), (16220, 1243531), (30818, 654490), (61636, 327245), (65449, 308180), (77045, 261796), (130898, 154090)]