18738880

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1889}}^1$

素因数の和:1937

約数の個数: 56

約数和(自身を含む): 46085760

約数和(自身を除く): 27346880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1889, 1984, 2480, 3778, 4960, 7556, 9445, 9920, 15112, 18890, 30224, 37780, 58559, 60448, 75560, 117118, 120896, 151120, 234236, 292795, 302240, 468472, 585590, 604480, 936944, 1171180, 1873888, 2342360, 3747776, 4684720, 9369440, 18738880]

約数ペア:

[(1, 18738880), (2, 9369440), (4, 4684720), (5, 3747776), (8, 2342360), (10, 1873888), (16, 1171180), (20, 936944), (31, 604480), (32, 585590), (40, 468472), (62, 302240), (64, 292795), (80, 234236), (124, 151120), (155, 120896), (160, 117118), (248, 75560), (310, 60448), (320, 58559), (496, 37780), (620, 30224), (992, 18890), (1240, 15112), (1889, 9920), (1984, 9445), (2480, 7556), (3778, 4960)]