440420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1$

素因数の和:108

約数の個数: 36

約数和(自身を含む): 992124

約数和(自身を除く): 551704

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 361, 380, 610, 722, 1159, 1220, 1444, 1805, 2318, 3610, 4636, 5795, 7220, 11590, 22021, 23180, 44042, 88084, 110105, 220210, 440420]

約数ペア:

[(1, 440420), (2, 220210), (4, 110105), (5, 88084), (10, 44042), (19, 23180), (20, 22021), (38, 11590), (61, 7220), (76, 5795), (95, 4636), (122, 3610), (190, 2318), (244, 1805), (305, 1444), (361, 1220), (380, 1159), (610, 722)]