19289440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3889}}^1$

素因数の和:3935

約数の個数: 48

約数和(自身を含む): 47053440

約数和(自身を除く): 27764000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 3889, 4960, 7778, 15556, 19445, 31112, 38890, 62224, 77780, 120559, 124448, 155560, 241118, 311120, 482236, 602795, 622240, 964472, 1205590, 1928944, 2411180, 3857888, 4822360, 9644720, 19289440]

約数ペア:

[(1, 19289440), (2, 9644720), (4, 4822360), (5, 3857888), (8, 2411180), (10, 1928944), (16, 1205590), (20, 964472), (31, 622240), (32, 602795), (40, 482236), (62, 311120), (80, 241118), (124, 155560), (155, 124448), (160, 120559), (248, 77780), (310, 62224), (496, 38890), (620, 31112), (992, 19445), (1240, 15556), (2480, 7778), (3889, 4960)]