19775940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8039}}^1$

素因数の和:8092

約数の個数: 48

約数和(自身を含む): 56730240

約数和(自身を除く): 36954300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8039, 16078, 24117, 32156, 40195, 48234, 80390, 96468, 120585, 160780, 241170, 329599, 482340, 659198, 988797, 1318396, 1647995, 1977594, 3295990, 3955188, 4943985, 6591980, 9887970, 19775940]

約数ペア:

[(1, 19775940), (2, 9887970), (3, 6591980), (4, 4943985), (5, 3955188), (6, 3295990), (10, 1977594), (12, 1647995), (15, 1318396), (20, 988797), (30, 659198), (41, 482340), (60, 329599), (82, 241170), (123, 160780), (164, 120585), (205, 96468), (246, 80390), (410, 48234), (492, 40195), (615, 32156), (820, 24117), (1230, 16078), (2460, 8039)]