155174980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{1993}}^1$

素因数の和:2248

約数の個数: 48

約数和(自身を含む): 346716720

約数和(自身を除く): 191541740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 229, 340, 458, 916, 1145, 1993, 2290, 3893, 3986, 4580, 7786, 7972, 9965, 15572, 19465, 19930, 33881, 38930, 39860, 67762, 77860, 135524, 169405, 338810, 456397, 677620, 912794, 1825588, 2281985, 4563970, 7758749, 9127940, 15517498, 31034996, 38793745, 77587490, 155174980]

約数ペア:

[(1, 155174980), (2, 77587490), (4, 38793745), (5, 31034996), (10, 15517498), (17, 9127940), (20, 7758749), (34, 4563970), (68, 2281985), (85, 1825588), (170, 912794), (229, 677620), (340, 456397), (458, 338810), (916, 169405), (1145, 135524), (1993, 77860), (2290, 67762), (3893, 39860), (3986, 38930), (4580, 33881), (7786, 19930), (7972, 19465), (9965, 15572)]