16387980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{39019}}^1$

素因数の和:39038

約数の個数: 48

約数和(自身を含む): 52442880

約数和(自身を除く): 36054900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 39019, 78038, 117057, 156076, 195095, 234114, 273133, 390190, 468228, 546266, 585285, 780380, 819399, 1092532, 1170570, 1365665, 1638798, 2341140, 2731330, 3277596, 4096995, 5462660, 8193990, 16387980]

約数ペア:

[(1, 16387980), (2, 8193990), (3, 5462660), (4, 4096995), (5, 3277596), (6, 2731330), (7, 2341140), (10, 1638798), (12, 1365665), (14, 1170570), (15, 1092532), (20, 819399), (21, 780380), (28, 585285), (30, 546266), (35, 468228), (42, 390190), (60, 273133), (70, 234114), (84, 195095), (105, 156076), (140, 117057), (210, 78038), (420, 39019)]