31431640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{2719}}^1$

素因数の和:2764

約数の個数: 48

約数和(自身を含む): 75153600

約数和(自身を除く): 43721960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 2312, 2719, 2890, 5438, 5780, 10876, 11560, 13595, 21752, 27190, 46223, 54380, 92446, 108760, 184892, 231115, 369784, 462230, 785791, 924460, 1571582, 1848920, 3143164, 3928955, 6286328, 7857910, 15715820, 31431640]

約数ペア:

[(1, 31431640), (2, 15715820), (4, 7857910), (5, 6286328), (8, 3928955), (10, 3143164), (17, 1848920), (20, 1571582), (34, 924460), (40, 785791), (68, 462230), (85, 369784), (136, 231115), (170, 184892), (289, 108760), (340, 92446), (578, 54380), (680, 46223), (1156, 27190), (1445, 21752), (2312, 13595), (2719, 11560), (2890, 10876), (5438, 5780)]