1804400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:378

約数の個数: 60

約数和(自身を含む): 4681992

約数和(自身を除く): 2877592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 347, 400, 520, 650, 694, 1040, 1300, 1388, 1735, 2600, 2776, 3470, 4511, 5200, 5552, 6940, 8675, 9022, 13880, 17350, 18044, 22555, 27760, 34700, 36088, 45110, 69400, 72176, 90220, 112775, 138800, 180440, 225550, 360880, 451100, 902200, 1804400]

約数ペア:

[(1, 1804400), (2, 902200), (4, 451100), (5, 360880), (8, 225550), (10, 180440), (13, 138800), (16, 112775), (20, 90220), (25, 72176), (26, 69400), (40, 45110), (50, 36088), (52, 34700), (65, 27760), (80, 22555), (100, 18044), (104, 17350), (130, 13880), (200, 9022), (208, 8675), (260, 6940), (325, 5552), (347, 5200), (400, 4511), (520, 3470), (650, 2776), (694, 2600), (1040, 1735), (1300, 1388)]