4427380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 9999360

約数和(自身を除く): 5571980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 191, 244, 305, 380, 382, 610, 764, 955, 1159, 1220, 1910, 2318, 3629, 3820, 4636, 5795, 7258, 11590, 11651, 14516, 18145, 23180, 23302, 36290, 46604, 58255, 72580, 116510, 221369, 233020, 442738, 885476, 1106845, 2213690, 4427380]

約数ペア:

[(1, 4427380), (2, 2213690), (4, 1106845), (5, 885476), (10, 442738), (19, 233020), (20, 221369), (38, 116510), (61, 72580), (76, 58255), (95, 46604), (122, 36290), (190, 23302), (191, 23180), (244, 18145), (305, 14516), (380, 11651), (382, 11590), (610, 7258), (764, 5795), (955, 4636), (1159, 3820), (1220, 3629), (1910, 2318)]