19645600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1889}}^1$

素因数の和:1922

約数の個数: 72

約数和(自身を含む): 51676380

約数和(自身を除く): 32030780

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 1889, 2080, 2600, 3778, 5200, 7556, 9445, 10400, 15112, 18890, 24557, 30224, 37780, 47225, 49114, 60448, 75560, 94450, 98228, 122785, 151120, 188900, 196456, 245570, 302240, 377800, 392912, 491140, 613925, 755600, 785824, 982280, 1227850, 1511200, 1964560, 2455700, 3929120, 4911400, 9822800, 19645600]

約数ペア:

[(1, 19645600), (2, 9822800), (4, 4911400), (5, 3929120), (8, 2455700), (10, 1964560), (13, 1511200), (16, 1227850), (20, 982280), (25, 785824), (26, 755600), (32, 613925), (40, 491140), (50, 392912), (52, 377800), (65, 302240), (80, 245570), (100, 196456), (104, 188900), (130, 151120), (160, 122785), (200, 98228), (208, 94450), (260, 75560), (325, 60448), (400, 49114), (416, 47225), (520, 37780), (650, 30224), (800, 24557), (1040, 18890), (1300, 15112), (1889, 10400), (2080, 9445), (2600, 7556), (3778, 5200)]