647820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 2031120

約数和(自身を除く): 1383300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 61, 90, 118, 122, 177, 180, 183, 236, 244, 295, 305, 354, 366, 531, 549, 590, 610, 708, 732, 885, 915, 1062, 1098, 1180, 1220, 1770, 1830, 2124, 2196, 2655, 2745, 3540, 3599, 3660, 5310, 5490, 7198, 10620, 10797, 10980, 14396, 17995, 21594, 32391, 35990, 43188, 53985, 64782, 71980, 107970, 129564, 161955, 215940, 323910, 647820]

約数ペア:

[(1, 647820), (2, 323910), (3, 215940), (4, 161955), (5, 129564), (6, 107970), (9, 71980), (10, 64782), (12, 53985), (15, 43188), (18, 35990), (20, 32391), (30, 21594), (36, 17995), (45, 14396), (59, 10980), (60, 10797), (61, 10620), (90, 7198), (118, 5490), (122, 5310), (177, 3660), (180, 3599), (183, 3540), (236, 2745), (244, 2655), (295, 2196), (305, 2124), (354, 1830), (366, 1770), (531, 1220), (549, 1180), (590, 1098), (610, 1062), (708, 915), (732, 885)]