20435200

素因数分解:

$2^8\times 5^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:160

約数の個数: 108

約数和(自身を含む): 52718848

約数和(自身を除く): 32283648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 103, 124, 128, 155, 160, 200, 206, 248, 256, 310, 320, 400, 412, 496, 515, 620, 640, 775, 800, 824, 992, 1030, 1240, 1280, 1550, 1600, 1648, 1984, 2060, 2480, 2575, 3100, 3193, 3200, 3296, 3968, 4120, 4960, 5150, 6200, 6386, 6400, 6592, 7936, 8240, 9920, 10300, 12400, 12772, 13184, 15965, 16480, 19840, 20600, 24800, 25544, 26368, 31930, 32960, 39680, 41200, 49600, 51088, 63860, 65920, 79825, 82400, 99200, 102176, 127720, 131840, 159650, 164800, 198400, 204352, 255440, 319300, 329600, 408704, 510880, 638600, 659200, 817408, 1021760, 1277200, 2043520, 2554400, 4087040, 5108800, 10217600, 20435200]

約数ペア:

[(1, 20435200), (2, 10217600), (4, 5108800), (5, 4087040), (8, 2554400), (10, 2043520), (16, 1277200), (20, 1021760), (25, 817408), (31, 659200), (32, 638600), (40, 510880), (50, 408704), (62, 329600), (64, 319300), (80, 255440), (100, 204352), (103, 198400), (124, 164800), (128, 159650), (155, 131840), (160, 127720), (200, 102176), (206, 99200), (248, 82400), (256, 79825), (310, 65920), (320, 63860), (400, 51088), (412, 49600), (496, 41200), (515, 39680), (620, 32960), (640, 31930), (775, 26368), (800, 25544), (824, 24800), (992, 20600), (1030, 19840), (1240, 16480), (1280, 15965), (1550, 13184), (1600, 12772), (1648, 12400), (1984, 10300), (2060, 9920), (2480, 8240), (2575, 7936), (3100, 6592), (3193, 6400), (3200, 6386), (3296, 6200), (3968, 5150), (4120, 4960)]