19263920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18523}}^1$

素因数の和:18549

約数の個数: 40

約数和(自身を含む): 48236496

約数和(自身を除く): 28972576

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18523, 37046, 74092, 92615, 148184, 185230, 240799, 296368, 370460, 481598, 740920, 963196, 1203995, 1481840, 1926392, 2407990, 3852784, 4815980, 9631960, 19263920]

約数ペア:

[(1, 19263920), (2, 9631960), (4, 4815980), (5, 3852784), (8, 2407990), (10, 1926392), (13, 1481840), (16, 1203995), (20, 963196), (26, 740920), (40, 481598), (52, 370460), (65, 296368), (80, 240799), (104, 185230), (130, 148184), (208, 92615), (260, 74092), (520, 37046), (1040, 18523)]