19361680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18617}}^1$

素因数の和:18643

約数の個数: 40

約数和(自身を含む): 48481272

約数和(自身を除く): 29119592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18617, 37234, 74468, 93085, 148936, 186170, 242021, 297872, 372340, 484042, 744680, 968084, 1210105, 1489360, 1936168, 2420210, 3872336, 4840420, 9680840, 19361680]

約数ペア:

[(1, 19361680), (2, 9680840), (4, 4840420), (5, 3872336), (8, 2420210), (10, 1936168), (13, 1489360), (16, 1210105), (20, 968084), (26, 744680), (40, 484042), (52, 372340), (65, 297872), (80, 242021), (104, 186170), (130, 148936), (208, 93085), (260, 74468), (520, 37234), (1040, 18617)]