1330390480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{272621}}^1$

素因数の和:272695

約数の個数: 40

約数和(自身を含む): 3143876904

約数和(自身を除く): 1813486424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 272621, 545242, 1090484, 1363105, 2180968, 2726210, 4361936, 5452420, 10904840, 16629881, 21809680, 33259762, 66519524, 83149405, 133039048, 166298810, 266078096, 332597620, 665195240, 1330390480]

約数ペア:

[(1, 1330390480), (2, 665195240), (4, 332597620), (5, 266078096), (8, 166298810), (10, 133039048), (16, 83149405), (20, 66519524), (40, 33259762), (61, 21809680), (80, 16629881), (122, 10904840), (244, 5452420), (305, 4361936), (488, 2726210), (610, 2180968), (976, 1363105), (1220, 1090484), (2440, 545242), (4880, 272621)]