19169680

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2887}}^1$

素因数の和:2983

約数の個数: 40

約数和(自身を含む): 45122112

約数和(自身を除く): 25952432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 2887, 3320, 5774, 6640, 11548, 14435, 23096, 28870, 46192, 57740, 115480, 230960, 239621, 479242, 958484, 1198105, 1916968, 2396210, 3833936, 4792420, 9584840, 19169680]

約数ペア:

[(1, 19169680), (2, 9584840), (4, 4792420), (5, 3833936), (8, 2396210), (10, 1916968), (16, 1198105), (20, 958484), (40, 479242), (80, 239621), (83, 230960), (166, 115480), (332, 57740), (415, 46192), (664, 28870), (830, 23096), (1328, 14435), (1660, 11548), (2887, 6640), (3320, 5774)]