4007920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:458

約数の個数: 80

約数和(自身を含む): 11302848

約数和(自身を除く): 7294928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 421, 476, 560, 595, 680, 842, 952, 1190, 1360, 1684, 1904, 2105, 2380, 2947, 3368, 4210, 4760, 5894, 6736, 7157, 8420, 9520, 11788, 14314, 14735, 16840, 23576, 28628, 29470, 33680, 35785, 47152, 50099, 57256, 58940, 71570, 100198, 114512, 117880, 143140, 200396, 235760, 250495, 286280, 400792, 500990, 572560, 801584, 1001980, 2003960, 4007920]

約数ペア:

[(1, 4007920), (2, 2003960), (4, 1001980), (5, 801584), (7, 572560), (8, 500990), (10, 400792), (14, 286280), (16, 250495), (17, 235760), (20, 200396), (28, 143140), (34, 117880), (35, 114512), (40, 100198), (56, 71570), (68, 58940), (70, 57256), (80, 50099), (85, 47152), (112, 35785), (119, 33680), (136, 29470), (140, 28628), (170, 23576), (238, 16840), (272, 14735), (280, 14314), (340, 11788), (421, 9520), (476, 8420), (560, 7157), (595, 6736), (680, 5894), (842, 4760), (952, 4210), (1190, 3368), (1360, 2947), (1684, 2380), (1904, 2105)]