20870100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23189}}^1$

素因数の和:23209

約数の個数: 54

約数和(自身を含む): 65418990

約数和(自身を除く): 44548890

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 23189, 46378, 69567, 92756, 115945, 139134, 208701, 231890, 278268, 347835, 417402, 463780, 579725, 695670, 834804, 1043505, 1159450, 1391340, 1739175, 2087010, 2318900, 3478350, 4174020, 5217525, 6956700, 10435050, 20870100]

約数ペア:

[(1, 20870100), (2, 10435050), (3, 6956700), (4, 5217525), (5, 4174020), (6, 3478350), (9, 2318900), (10, 2087010), (12, 1739175), (15, 1391340), (18, 1159450), (20, 1043505), (25, 834804), (30, 695670), (36, 579725), (45, 463780), (50, 417402), (60, 347835), (75, 278268), (90, 231890), (100, 208701), (150, 139134), (180, 115945), (225, 92756), (300, 69567), (450, 46378), (900, 23189)]