1636020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 5077800

約数和(自身を除く): 3441780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 149, 180, 183, 244, 298, 305, 366, 447, 549, 596, 610, 732, 745, 894, 915, 1098, 1220, 1341, 1490, 1788, 1830, 2196, 2235, 2682, 2745, 2980, 3660, 4470, 5364, 5490, 6705, 8940, 9089, 10980, 13410, 18178, 26820, 27267, 36356, 45445, 54534, 81801, 90890, 109068, 136335, 163602, 181780, 272670, 327204, 409005, 545340, 818010, 1636020]

約数ペア:

[(1, 1636020), (2, 818010), (3, 545340), (4, 409005), (5, 327204), (6, 272670), (9, 181780), (10, 163602), (12, 136335), (15, 109068), (18, 90890), (20, 81801), (30, 54534), (36, 45445), (45, 36356), (60, 27267), (61, 26820), (90, 18178), (122, 13410), (149, 10980), (180, 9089), (183, 8940), (244, 6705), (298, 5490), (305, 5364), (366, 4470), (447, 3660), (549, 2980), (596, 2745), (610, 2682), (732, 2235), (745, 2196), (894, 1830), (915, 1788), (1098, 1490), (1220, 1341)]