16800620

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 36747648

約数和(自身を除く): 19947028

約数列:

[1, 2, 4, 5, 10, 20, 47, 61, 94, 122, 188, 235, 244, 293, 305, 470, 586, 610, 940, 1172, 1220, 1465, 2867, 2930, 5734, 5860, 11468, 13771, 14335, 17873, 27542, 28670, 35746, 55084, 57340, 68855, 71492, 89365, 137710, 178730, 275420, 357460, 840031, 1680062, 3360124, 4200155, 8400310, 16800620]

約数ペア:

[(1, 16800620), (2, 8400310), (4, 4200155), (5, 3360124), (10, 1680062), (20, 840031), (47, 357460), (61, 275420), (94, 178730), (122, 137710), (188, 89365), (235, 71492), (244, 68855), (293, 57340), (305, 55084), (470, 35746), (586, 28670), (610, 27542), (940, 17873), (1172, 14335), (1220, 13771), (1465, 11468), (2867, 5860), (2930, 5734)]