19844320

素因数分解:

$2^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1699}}^1$

素因数の和:1787

約数の個数: 48

約数和(自身を含む): 47552400

約数和(自身を除く): 27708080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 73, 80, 146, 160, 292, 365, 584, 730, 1168, 1460, 1699, 2336, 2920, 3398, 5840, 6796, 8495, 11680, 13592, 16990, 27184, 33980, 54368, 67960, 124027, 135920, 248054, 271840, 496108, 620135, 992216, 1240270, 1984432, 2480540, 3968864, 4961080, 9922160, 19844320]

約数ペア:

[(1, 19844320), (2, 9922160), (4, 4961080), (5, 3968864), (8, 2480540), (10, 1984432), (16, 1240270), (20, 992216), (32, 620135), (40, 496108), (73, 271840), (80, 248054), (146, 135920), (160, 124027), (292, 67960), (365, 54368), (584, 33980), (730, 27184), (1168, 16990), (1460, 13592), (1699, 11680), (2336, 8495), (2920, 6796), (3398, 5840)]