80917460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2239}}^1$

素因数の和:2400

約数の個数: 48

約数和(自身を含む): 184396800

約数和(自身を除く): 103479340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 2239, 2780, 3614, 4478, 7228, 8956, 9035, 11195, 18070, 22390, 29107, 36140, 44780, 58214, 116428, 145535, 291070, 311221, 582140, 622442, 1244884, 1556105, 3112210, 4045873, 6224420, 8091746, 16183492, 20229365, 40458730, 80917460]

約数ペア:

[(1, 80917460), (2, 40458730), (4, 20229365), (5, 16183492), (10, 8091746), (13, 6224420), (20, 4045873), (26, 3112210), (52, 1556105), (65, 1244884), (130, 622442), (139, 582140), (260, 311221), (278, 291070), (556, 145535), (695, 116428), (1390, 58214), (1807, 44780), (2239, 36140), (2780, 29107), (3614, 22390), (4478, 18070), (7228, 11195), (8956, 9035)]