163043240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{66821}}^1$

素因数の和:66893

約数の個数: 32

約数和(自身を含む): 372866760

約数和(自身を除く): 209823520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 66821, 133642, 267284, 334105, 534568, 668210, 1336420, 2672840, 4076081, 8152162, 16304324, 20380405, 32608648, 40760810, 81521620, 163043240]

約数ペア:

[(1, 163043240), (2, 81521620), (4, 40760810), (5, 32608648), (8, 20380405), (10, 16304324), (20, 8152162), (40, 4076081), (61, 2672840), (122, 1336420), (244, 668210), (305, 534568), (488, 334105), (610, 267284), (1220, 133642), (2440, 66821)]