201997900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{155383}}^1$

素因数の和:155410

約数の個数: 36

約数和(自身を含む): 472056592

約数和(自身を除く): 270058692

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 155383, 310766, 621532, 776915, 1553830, 2019979, 3107660, 3884575, 4039958, 7769150, 8079916, 10099895, 15538300, 20199790, 40399580, 50499475, 100998950, 201997900]

約数ペア:

[(1, 201997900), (2, 100998950), (4, 50499475), (5, 40399580), (10, 20199790), (13, 15538300), (20, 10099895), (25, 8079916), (26, 7769150), (50, 4039958), (52, 3884575), (65, 3107660), (100, 2019979), (130, 1553830), (260, 776915), (325, 621532), (650, 310766), (1300, 155383)]