23120420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 27682780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 310, 356, 419, 445, 620, 838, 890, 1676, 1780, 2095, 2759, 4190, 5518, 8380, 11036, 12989, 13795, 25978, 27590, 37291, 51956, 55180, 64945, 74582, 129890, 149164, 186455, 259780, 372910, 745820, 1156021, 2312042, 4624084, 5780105, 11560210, 23120420]

約数ペア:

[(1, 23120420), (2, 11560210), (4, 5780105), (5, 4624084), (10, 2312042), (20, 1156021), (31, 745820), (62, 372910), (89, 259780), (124, 186455), (155, 149164), (178, 129890), (310, 74582), (356, 64945), (419, 55180), (445, 51956), (620, 37291), (838, 27590), (890, 25978), (1676, 13795), (1780, 12989), (2095, 11036), (2759, 8380), (4190, 5518)]