680506420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:302

約数の個数: 144

約数和(自身を含む): 1664538624

約数和(自身を除く): 984032204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 47, 55, 62, 94, 110, 121, 124, 155, 188, 193, 220, 235, 242, 310, 341, 386, 470, 484, 517, 605, 620, 682, 772, 940, 965, 1034, 1210, 1364, 1457, 1705, 1930, 2068, 2123, 2420, 2585, 2914, 3410, 3751, 3860, 4246, 5170, 5687, 5828, 5983, 6820, 7285, 7502, 8492, 9071, 10340, 10615, 11374, 11966, 14570, 15004, 16027, 18142, 18755, 21230, 22748, 23353, 23932, 28435, 29140, 29915, 32054, 36284, 37510, 42460, 45355, 46706, 56870, 59830, 64108, 65813, 75020, 80135, 90710, 93412, 99781, 113740, 116765, 119660, 131626, 160270, 176297, 181420, 199562, 233530, 263252, 281201, 320540, 329065, 352594, 399124, 467060, 498905, 562402, 658130, 705188, 723943, 881485, 997810, 1097591, 1124804, 1316260, 1406005, 1447886, 1762970, 1995620, 2195182, 2812010, 2895772, 3093211, 3525940, 3619715, 4390364, 5487955, 5624020, 6186422, 7239430, 10975910, 12372844, 14478860, 15466055, 21951820, 30932110, 34025321, 61864220, 68050642, 136101284, 170126605, 340253210, 680506420]

約数ペア:

[(1, 680506420), (2, 340253210), (4, 170126605), (5, 136101284), (10, 68050642), (11, 61864220), (20, 34025321), (22, 30932110), (31, 21951820), (44, 15466055), (47, 14478860), (55, 12372844), (62, 10975910), (94, 7239430), (110, 6186422), (121, 5624020), (124, 5487955), (155, 4390364), (188, 3619715), (193, 3525940), (220, 3093211), (235, 2895772), (242, 2812010), (310, 2195182), (341, 1995620), (386, 1762970), (470, 1447886), (484, 1406005), (517, 1316260), (605, 1124804), (620, 1097591), (682, 997810), (772, 881485), (940, 723943), (965, 705188), (1034, 658130), (1210, 562402), (1364, 498905), (1457, 467060), (1705, 399124), (1930, 352594), (2068, 329065), (2123, 320540), (2420, 281201), (2585, 263252), (2914, 233530), (3410, 199562), (3751, 181420), (3860, 176297), (4246, 160270), (5170, 131626), (5687, 119660), (5828, 116765), (5983, 113740), (6820, 99781), (7285, 93412), (7502, 90710), (8492, 80135), (9071, 75020), (10340, 65813), (10615, 64108), (11374, 59830), (11966, 56870), (14570, 46706), (15004, 45355), (16027, 42460), (18142, 37510), (18755, 36284), (21230, 32054), (22748, 29915), (23353, 29140), (23932, 28435)]