31972820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7649}}^1$

素因数の和:7688

約数の個数: 48

約数和(自身を含む): 77112000

約数和(自身を除く): 45139180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 7649, 15298, 30596, 38245, 76490, 84139, 145331, 152980, 168278, 290662, 336556, 420695, 581324, 726655, 841390, 1453310, 1598641, 1682780, 2906620, 3197282, 6394564, 7993205, 15986410, 31972820]

約数ペア:

[(1, 31972820), (2, 15986410), (4, 7993205), (5, 6394564), (10, 3197282), (11, 2906620), (19, 1682780), (20, 1598641), (22, 1453310), (38, 841390), (44, 726655), (55, 581324), (76, 420695), (95, 336556), (110, 290662), (190, 168278), (209, 152980), (220, 145331), (380, 84139), (418, 76490), (836, 38245), (1045, 30596), (2090, 15298), (4180, 7649)]