20347680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42391}}^1$

素因数の和:42409

約数の個数: 48

約数和(自身を含む): 64096704

約数和(自身を除く): 43749024

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 42391, 84782, 127173, 169564, 211955, 254346, 339128, 423910, 508692, 635865, 678256, 847820, 1017384, 1271730, 1356512, 1695640, 2034768, 2543460, 3391280, 4069536, 5086920, 6782560, 10173840, 20347680]

約数ペア:

[(1, 20347680), (2, 10173840), (3, 6782560), (4, 5086920), (5, 4069536), (6, 3391280), (8, 2543460), (10, 2034768), (12, 1695640), (15, 1356512), (16, 1271730), (20, 1017384), (24, 847820), (30, 678256), (32, 635865), (40, 508692), (48, 423910), (60, 339128), (80, 254346), (96, 211955), (120, 169564), (160, 127173), (240, 84782), (480, 42391)]