20512159640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1382221}}^1$

素因数の和:1382292

約数の個数: 64

約数和(自身を含む): 53740791360

約数和(自身を除く): 33228631720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1484, 1855, 2120, 2968, 3710, 7420, 14840, 1382221, 2764442, 5528884, 6911105, 9675547, 11057768, 13822210, 19351094, 27644420, 38702188, 48377735, 55288840, 73257713, 77404376, 96755470, 146515426, 193510940, 293030852, 366288565, 387021880, 512803991, 586061704, 732577130, 1025607982, 1465154260, 2051215964, 2564019955, 2930308520, 4102431928, 5128039910, 10256079820, 20512159640]

約数ペア:

[(1, 20512159640), (2, 10256079820), (4, 5128039910), (5, 4102431928), (7, 2930308520), (8, 2564019955), (10, 2051215964), (14, 1465154260), (20, 1025607982), (28, 732577130), (35, 586061704), (40, 512803991), (53, 387021880), (56, 366288565), (70, 293030852), (106, 193510940), (140, 146515426), (212, 96755470), (265, 77404376), (280, 73257713), (371, 55288840), (424, 48377735), (530, 38702188), (742, 27644420), (1060, 19351094), (1484, 13822210), (1855, 11057768), (2120, 9675547), (2968, 6911105), (3710, 5528884), (7420, 2764442), (14840, 1382221)]