646271460

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{398933}}^1$

素因数の和:398954

約数の個数: 60

約数和(自身を含む): 2027382588

約数和(自身を除く): 1381111128

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 398933, 797866, 1196799, 1595732, 1994665, 2393598, 3590397, 3989330, 4787196, 5983995, 7180794, 7978660, 10771191, 11967990, 14361588, 17951985, 21542382, 23935980, 32313573, 35903970, 43084764, 53855955, 64627146, 71807940, 107711910, 129254292, 161567865, 215423820, 323135730, 646271460]

約数ペア:

[(1, 646271460), (2, 323135730), (3, 215423820), (4, 161567865), (5, 129254292), (6, 107711910), (9, 71807940), (10, 64627146), (12, 53855955), (15, 43084764), (18, 35903970), (20, 32313573), (27, 23935980), (30, 21542382), (36, 17951985), (45, 14361588), (54, 11967990), (60, 10771191), (81, 7978660), (90, 7180794), (108, 5983995), (135, 4787196), (162, 3989330), (180, 3590397), (270, 2393598), (324, 1994665), (405, 1595732), (540, 1196799), (810, 797866), (1620, 398933)]