19773680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13009}}^1$

素因数の和:13041

約数の個数: 40

約数和(自身を含む): 48397200

約数和(自身を除く): 28623520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13009, 26018, 52036, 65045, 104072, 130090, 208144, 247171, 260180, 494342, 520360, 988684, 1040720, 1235855, 1977368, 2471710, 3954736, 4943420, 9886840, 19773680]

約数ペア:

[(1, 19773680), (2, 9886840), (4, 4943420), (5, 3954736), (8, 2471710), (10, 1977368), (16, 1235855), (19, 1040720), (20, 988684), (38, 520360), (40, 494342), (76, 260180), (80, 247171), (95, 208144), (152, 130090), (190, 104072), (304, 65045), (380, 52036), (760, 26018), (1520, 13009)]