20400390

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{75557}}^1$

素因数の和:75573

約数の個数: 32

約数和(自身を含む): 54401760

約数和(自身を除く): 34001370

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 75557, 151114, 226671, 377785, 453342, 680013, 755570, 1133355, 1360026, 2040039, 2266710, 3400065, 4080078, 6800130, 10200195, 20400390]

約数ペア:

[(1, 20400390), (2, 10200195), (3, 6800130), (5, 4080078), (6, 3400065), (9, 2266710), (10, 2040039), (15, 1360026), (18, 1133355), (27, 755570), (30, 680013), (45, 453342), (54, 377785), (90, 226671), (135, 151114), (270, 75557)]