40870400

素因数分解:

$2^9\times 5^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:162

約数の個数: 120

約数和(自身を含む): 105540864

約数和(自身を除く): 64670464

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, 512, 515, 620, 640, 775, 800, 824, 992, 1030, 1240, 1280, 1550, 1600, 1648, 1984, 2060, 2480, 2560, 2575, 3100, 3193, 3200, 3296, 3968, 4120, 4960, 5150, 6200, 6386, 6400, 6592, 7936, 8240, 9920, 10300, 12400, 12772, 12800, 13184, 15872, 15965, 16480, 19840, 20600, 24800, 25544, 26368, 31930, 32960, 39680, 41200, 49600, 51088, 52736, 63860, 65920, 79360, 79825, 82400, 99200, 102176, 127720, 131840, 159650, 164800, 198400, 204352, 255440, 263680, 319300, 329600, 396800, 408704, 510880, 638600, 659200, 817408, 1021760, 1277200, 1318400, 1634816, 2043520, 2554400, 4087040, 5108800, 8174080, 10217600, 20435200, 40870400]

約数ペア:

[(1, 40870400), (2, 20435200), (4, 10217600), (5, 8174080), (8, 5108800), (10, 4087040), (16, 2554400), (20, 2043520), (25, 1634816), (31, 1318400), (32, 1277200), (40, 1021760), (50, 817408), (62, 659200), (64, 638600), (80, 510880), (100, 408704), (103, 396800), (124, 329600), (128, 319300), (155, 263680), (160, 255440), (200, 204352), (206, 198400), (248, 164800), (256, 159650), (310, 131840), (320, 127720), (400, 102176), (412, 99200), (496, 82400), (512, 79825), (515, 79360), (620, 65920), (640, 63860), (775, 52736), (800, 51088), (824, 49600), (992, 41200), (1030, 39680), (1240, 32960), (1280, 31930), (1550, 26368), (1600, 25544), (1648, 24800), (1984, 20600), (2060, 19840), (2480, 16480), (2560, 15965), (2575, 15872), (3100, 13184), (3193, 12800), (3200, 12772), (3296, 12400), (3968, 10300), (4120, 9920), (4960, 8240), (5150, 7936), (6200, 6592), (6386, 6400)]