20610367550

素因数分解:

$2^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{389}}^1\times {\mathrm{8089}}^1$

素因数の和:8621

約数の個数: 48

約数和(自身を含む): 38732007600

約数和(自身を除く): 18121640050

約数列:

[1, 2, 5, 10, 25, 50, 131, 262, 389, 655, 778, 1310, 1945, 3275, 3890, 6550, 8089, 9725, 16178, 19450, 40445, 50959, 80890, 101918, 202225, 254795, 404450, 509590, 1059659, 1273975, 2119318, 2547950, 3146621, 5298295, 6293242, 10596590, 15733105, 26491475, 31466210, 52982950, 78665525, 157331050, 412207351, 824414702, 2061036755, 4122073510, 10305183775, 20610367550]

約数ペア:

[(1, 20610367550), (2, 10305183775), (5, 4122073510), (10, 2061036755), (25, 824414702), (50, 412207351), (131, 157331050), (262, 78665525), (389, 52982950), (655, 31466210), (778, 26491475), (1310, 15733105), (1945, 10596590), (3275, 6293242), (3890, 5298295), (6550, 3146621), (8089, 2547950), (9725, 2119318), (16178, 1273975), (19450, 1059659), (40445, 509590), (50959, 404450), (80890, 254795), (101918, 202225)]