13005164020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{140779}}^1$

素因数の和:140968

約数の個数: 48

約数和(自身を含む): 28381248000

約数和(自身を除く): 15376083980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 298, 310, 596, 620, 745, 1490, 2980, 4619, 9238, 18476, 23095, 46190, 92380, 140779, 281558, 563116, 703895, 1407790, 2815580, 4364149, 8728298, 17456596, 20976071, 21820745, 41952142, 43641490, 83904284, 87282980, 104880355, 209760710, 419521420, 650258201, 1300516402, 2601032804, 3251291005, 6502582010, 13005164020]

約数ペア:

[(1, 13005164020), (2, 6502582010), (4, 3251291005), (5, 2601032804), (10, 1300516402), (20, 650258201), (31, 419521420), (62, 209760710), (124, 104880355), (149, 87282980), (155, 83904284), (298, 43641490), (310, 41952142), (596, 21820745), (620, 20976071), (745, 17456596), (1490, 8728298), (2980, 4364149), (4619, 2815580), (9238, 1407790), (18476, 703895), (23095, 563116), (46190, 281558), (92380, 140779)]