18991920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79133}}^1$

素因数の和:79149

約数の個数: 40

約数和(自身を含む): 58875696

約数和(自身を除く): 39883776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 79133, 158266, 237399, 316532, 395665, 474798, 633064, 791330, 949596, 1186995, 1266128, 1582660, 1899192, 2373990, 3165320, 3798384, 4747980, 6330640, 9495960, 18991920]

約数ペア:

[(1, 18991920), (2, 9495960), (3, 6330640), (4, 4747980), (5, 3798384), (6, 3165320), (8, 2373990), (10, 1899192), (12, 1582660), (15, 1266128), (16, 1186995), (20, 949596), (24, 791330), (30, 633064), (40, 474798), (48, 395665), (60, 316532), (80, 237399), (120, 158266), (240, 79133)]