20039600

素因数分解:

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

素因数の和:463

約数の個数: 120

約数和(自身を含む): 58398048

約数和(自身を除く): 38358448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 80, 85, 100, 112, 119, 136, 140, 170, 175, 200, 238, 272, 280, 340, 350, 400, 421, 425, 476, 560, 595, 680, 700, 842, 850, 952, 1190, 1360, 1400, 1684, 1700, 1904, 2105, 2380, 2800, 2947, 2975, 3368, 3400, 4210, 4760, 5894, 5950, 6736, 6800, 7157, 8420, 9520, 10525, 11788, 11900, 14314, 14735, 16840, 21050, 23576, 23800, 28628, 29470, 33680, 35785, 42100, 47152, 47600, 50099, 57256, 58940, 71570, 73675, 84200, 100198, 114512, 117880, 143140, 147350, 168400, 178925, 200396, 235760, 250495, 286280, 294700, 357850, 400792, 500990, 572560, 589400, 715700, 801584, 1001980, 1178800, 1252475, 1431400, 2003960, 2504950, 2862800, 4007920, 5009900, 10019800, 20039600]

約数ペア:

[(1, 20039600), (2, 10019800), (4, 5009900), (5, 4007920), (7, 2862800), (8, 2504950), (10, 2003960), (14, 1431400), (16, 1252475), (17, 1178800), (20, 1001980), (25, 801584), (28, 715700), (34, 589400), (35, 572560), (40, 500990), (50, 400792), (56, 357850), (68, 294700), (70, 286280), (80, 250495), (85, 235760), (100, 200396), (112, 178925), (119, 168400), (136, 147350), (140, 143140), (170, 117880), (175, 114512), (200, 100198), (238, 84200), (272, 73675), (280, 71570), (340, 58940), (350, 57256), (400, 50099), (421, 47600), (425, 47152), (476, 42100), (560, 35785), (595, 33680), (680, 29470), (700, 28628), (842, 23800), (850, 23576), (952, 21050), (1190, 16840), (1360, 14735), (1400, 14314), (1684, 11900), (1700, 11788), (1904, 10525), (2105, 9520), (2380, 8420), (2800, 7157), (2947, 6800), (2975, 6736), (3368, 5950), (3400, 5894), (4210, 4760)]