4511000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 11400480

約数和(自身を除く): 6889480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 347, 500, 520, 650, 694, 1000, 1300, 1388, 1625, 1735, 2600, 2776, 3250, 3470, 4511, 6500, 6940, 8675, 9022, 13000, 13880, 17350, 18044, 22555, 34700, 36088, 43375, 45110, 69400, 86750, 90220, 112775, 173500, 180440, 225550, 347000, 451100, 563875, 902200, 1127750, 2255500, 4511000]

約数ペア:

[(1, 4511000), (2, 2255500), (4, 1127750), (5, 902200), (8, 563875), (10, 451100), (13, 347000), (20, 225550), (25, 180440), (26, 173500), (40, 112775), (50, 90220), (52, 86750), (65, 69400), (100, 45110), (104, 43375), (125, 36088), (130, 34700), (200, 22555), (250, 18044), (260, 17350), (325, 13880), (347, 13000), (500, 9022), (520, 8675), (650, 6940), (694, 6500), (1000, 4511), (1300, 3470), (1388, 3250), (1625, 2776), (1735, 2600)]