71202420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{881}}^1$

素因数の和:1345

約数の個数: 72

約数和(自身を含む): 216707400

約数和(自身を除く): 145504980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449, 881, 898, 1347, 1762, 1796, 2245, 2643, 2694, 3524, 4041, 4405, 4490, 5286, 5388, 6735, 7929, 8082, 8810, 8980, 10572, 13215, 13470, 15858, 16164, 17620, 20205, 26430, 26940, 31716, 39645, 40410, 52860, 79290, 80820, 158580, 395569, 791138, 1186707, 1582276, 1977845, 2373414, 3560121, 3955690, 4746828, 5933535, 7120242, 7911380, 11867070, 14240484, 17800605, 23734140, 35601210, 71202420]

約数ペア:

[(1, 71202420), (2, 35601210), (3, 23734140), (4, 17800605), (5, 14240484), (6, 11867070), (9, 7911380), (10, 7120242), (12, 5933535), (15, 4746828), (18, 3955690), (20, 3560121), (30, 2373414), (36, 1977845), (45, 1582276), (60, 1186707), (90, 791138), (180, 395569), (449, 158580), (881, 80820), (898, 79290), (1347, 52860), (1762, 40410), (1796, 39645), (2245, 31716), (2643, 26940), (2694, 26430), (3524, 20205), (4041, 17620), (4405, 16164), (4490, 15858), (5286, 13470), (5388, 13215), (6735, 10572), (7929, 8980), (8082, 8810)]