618540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1$

素因数の和:99

約数の個数: 72

約数和(自身を含む): 1906128

約数和(自身を除く): 1287588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 61, 65, 78, 122, 130, 156, 169, 183, 195, 244, 260, 305, 338, 366, 390, 507, 610, 676, 732, 780, 793, 845, 915, 1014, 1220, 1586, 1690, 1830, 2028, 2379, 2535, 3172, 3380, 3660, 3965, 4758, 5070, 7930, 9516, 10140, 10309, 11895, 15860, 20618, 23790, 30927, 41236, 47580, 51545, 61854, 103090, 123708, 154635, 206180, 309270, 618540]

約数ペア:

[(1, 618540), (2, 309270), (3, 206180), (4, 154635), (5, 123708), (6, 103090), (10, 61854), (12, 51545), (13, 47580), (15, 41236), (20, 30927), (26, 23790), (30, 20618), (39, 15860), (52, 11895), (60, 10309), (61, 10140), (65, 9516), (78, 7930), (122, 5070), (130, 4758), (156, 3965), (169, 3660), (183, 3380), (195, 3172), (244, 2535), (260, 2379), (305, 2028), (338, 1830), (366, 1690), (390, 1586), (507, 1220), (610, 1014), (676, 915), (732, 845), (780, 793)]