396800

素因数分解:

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

素因数の和:59

約数の個数: 60

約数和(自身を含む): 1014816

約数和(自身を除く): 618016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 256, 310, 320, 400, 496, 512, 620, 640, 775, 800, 992, 1240, 1280, 1550, 1600, 1984, 2480, 2560, 3100, 3200, 3968, 4960, 6200, 6400, 7936, 9920, 12400, 12800, 15872, 19840, 24800, 39680, 49600, 79360, 99200, 198400, 396800]

約数ペア:

[(1, 396800), (2, 198400), (4, 99200), (5, 79360), (8, 49600), (10, 39680), (16, 24800), (20, 19840), (25, 15872), (31, 12800), (32, 12400), (40, 9920), (50, 7936), (62, 6400), (64, 6200), (80, 4960), (100, 3968), (124, 3200), (128, 3100), (155, 2560), (160, 2480), (200, 1984), (248, 1600), (256, 1550), (310, 1280), (320, 1240), (400, 992), (496, 800), (512, 775), (620, 640)]