20293875

素因数分解:

$3^3\times 5^3\times 7^1\times {\mathrm{859}}^1$

素因数の和:890

約数の個数: 64

約数和(自身を含む): 42931200

約数和(自身を除く): 22637325

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 125, 135, 175, 189, 225, 315, 375, 525, 675, 859, 875, 945, 1125, 1575, 2577, 2625, 3375, 4295, 4725, 6013, 7731, 7875, 12885, 18039, 21475, 23193, 23625, 30065, 38655, 54117, 64425, 90195, 107375, 115965, 150325, 162351, 193275, 270585, 322125, 450975, 579825, 751625, 811755, 966375, 1352925, 2254875, 2899125, 4058775, 6764625, 20293875]

約数ペア:

[(1, 20293875), (3, 6764625), (5, 4058775), (7, 2899125), (9, 2254875), (15, 1352925), (21, 966375), (25, 811755), (27, 751625), (35, 579825), (45, 450975), (63, 322125), (75, 270585), (105, 193275), (125, 162351), (135, 150325), (175, 115965), (189, 107375), (225, 90195), (315, 64425), (375, 54117), (525, 38655), (675, 30065), (859, 23625), (875, 23193), (945, 21475), (1125, 18039), (1575, 12885), (2577, 7875), (2625, 7731), (3375, 6013), (4295, 4725)]