18306840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{409}}^1$

素因数の和:796

約数の個数: 64

約数和(自身を含む): 55202400

約数和(自身を除く): 36895560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 373, 409, 746, 818, 1119, 1227, 1492, 1636, 1865, 2045, 2238, 2454, 2984, 3272, 3730, 4090, 4476, 4908, 5595, 6135, 7460, 8180, 8952, 9816, 11190, 12270, 14920, 16360, 22380, 24540, 44760, 49080, 152557, 305114, 457671, 610228, 762785, 915342, 1220456, 1525570, 1830684, 2288355, 3051140, 3661368, 4576710, 6102280, 9153420, 18306840]

約数ペア:

[(1, 18306840), (2, 9153420), (3, 6102280), (4, 4576710), (5, 3661368), (6, 3051140), (8, 2288355), (10, 1830684), (12, 1525570), (15, 1220456), (20, 915342), (24, 762785), (30, 610228), (40, 457671), (60, 305114), (120, 152557), (373, 49080), (409, 44760), (746, 24540), (818, 22380), (1119, 16360), (1227, 14920), (1492, 12270), (1636, 11190), (1865, 9816), (2045, 8952), (2238, 8180), (2454, 7460), (2984, 6135), (3272, 5595), (3730, 4908), (4090, 4476)]