1320969520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{40973}}^1$

素因数の和:41030

約数の個数: 80

約数和(自身を含む): 3414281472

約数和(自身を除く): 2093311952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 40973, 81946, 163892, 204865, 327784, 409730, 532649, 655568, 819460, 1065298, 1270163, 1638920, 2130596, 2540326, 2663245, 3277840, 4261192, 5080652, 5326490, 6350815, 8522384, 10161304, 10652980, 12701630, 16512119, 20322608, 21305960, 25403260, 33024238, 42611920, 50806520, 66048476, 82560595, 101613040, 132096952, 165121190, 264193904, 330242380, 660484760, 1320969520]

約数ペア:

[(1, 1320969520), (2, 660484760), (4, 330242380), (5, 264193904), (8, 165121190), (10, 132096952), (13, 101613040), (16, 82560595), (20, 66048476), (26, 50806520), (31, 42611920), (40, 33024238), (52, 25403260), (62, 21305960), (65, 20322608), (80, 16512119), (104, 12701630), (124, 10652980), (130, 10161304), (155, 8522384), (208, 6350815), (248, 5326490), (260, 5080652), (310, 4261192), (403, 3277840), (496, 2663245), (520, 2540326), (620, 2130596), (806, 1638920), (1040, 1270163), (1240, 1065298), (1612, 819460), (2015, 655568), (2480, 532649), (3224, 409730), (4030, 327784), (6448, 204865), (8060, 163892), (16120, 81946), (32240, 40973)]