16625920

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 41207040

約数和(自身を除く): 24581120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 419, 496, 620, 640, 838, 992, 1240, 1280, 1676, 1984, 2095, 2480, 3352, 3968, 4190, 4960, 6704, 7936, 8380, 9920, 12989, 13408, 16760, 19840, 25978, 26816, 33520, 39680, 51956, 53632, 64945, 67040, 103912, 107264, 129890, 134080, 207824, 259780, 268160, 415648, 519560, 536320, 831296, 1039120, 1662592, 2078240, 3325184, 4156480, 8312960, 16625920]

約数ペア:

[(1, 16625920), (2, 8312960), (4, 4156480), (5, 3325184), (8, 2078240), (10, 1662592), (16, 1039120), (20, 831296), (31, 536320), (32, 519560), (40, 415648), (62, 268160), (64, 259780), (80, 207824), (124, 134080), (128, 129890), (155, 107264), (160, 103912), (248, 67040), (256, 64945), (310, 53632), (320, 51956), (419, 39680), (496, 33520), (620, 26816), (640, 25978), (838, 19840), (992, 16760), (1240, 13408), (1280, 12989), (1676, 9920), (1984, 8380), (2095, 7936), (2480, 6704), (3352, 4960), (3968, 4190)]