18831800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7243}}^1$

素因数の和:7272

約数の個数: 48

約数和(自身を含む): 47158440

約数和(自身を除く): 28326640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7243, 14486, 28972, 36215, 57944, 72430, 94159, 144860, 181075, 188318, 289720, 362150, 376636, 470795, 724300, 753272, 941590, 1448600, 1883180, 2353975, 3766360, 4707950, 9415900, 18831800]

約数ペア:

[(1, 18831800), (2, 9415900), (4, 4707950), (5, 3766360), (8, 2353975), (10, 1883180), (13, 1448600), (20, 941590), (25, 753272), (26, 724300), (40, 470795), (50, 376636), (52, 362150), (65, 289720), (100, 188318), (104, 181075), (130, 144860), (200, 94159), (260, 72430), (325, 57944), (520, 36215), (650, 28972), (1300, 14486), (2600, 7243)]