280409880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1753}}^1$

素因数の和:1841

約数の個数: 128

約数和(自身を含む): 889067520

約数和(自身を除く): 608657640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 43, 60, 62, 86, 93, 120, 124, 129, 155, 172, 186, 215, 248, 258, 310, 344, 372, 430, 465, 516, 620, 645, 744, 860, 930, 1032, 1240, 1290, 1333, 1720, 1753, 1860, 2580, 2666, 3506, 3720, 3999, 5160, 5259, 5332, 6665, 7012, 7998, 8765, 10518, 10664, 13330, 14024, 15996, 17530, 19995, 21036, 26295, 26660, 31992, 35060, 39990, 42072, 52590, 53320, 54343, 70120, 75379, 79980, 105180, 108686, 150758, 159960, 163029, 210360, 217372, 226137, 271715, 301516, 326058, 376895, 434744, 452274, 543430, 603032, 652116, 753790, 815145, 904548, 1086860, 1130685, 1304232, 1507580, 1630290, 1809096, 2173720, 2261370, 2336749, 3015160, 3260580, 4522740, 4673498, 6521160, 7010247, 9045480, 9346996, 11683745, 14020494, 18693992, 23367490, 28040988, 35051235, 46734980, 56081976, 70102470, 93469960, 140204940, 280409880]

約数ペア:

[(1, 280409880), (2, 140204940), (3, 93469960), (4, 70102470), (5, 56081976), (6, 46734980), (8, 35051235), (10, 28040988), (12, 23367490), (15, 18693992), (20, 14020494), (24, 11683745), (30, 9346996), (31, 9045480), (40, 7010247), (43, 6521160), (60, 4673498), (62, 4522740), (86, 3260580), (93, 3015160), (120, 2336749), (124, 2261370), (129, 2173720), (155, 1809096), (172, 1630290), (186, 1507580), (215, 1304232), (248, 1130685), (258, 1086860), (310, 904548), (344, 815145), (372, 753790), (430, 652116), (465, 603032), (516, 543430), (620, 452274), (645, 434744), (744, 376895), (860, 326058), (930, 301516), (1032, 271715), (1240, 226137), (1290, 217372), (1333, 210360), (1720, 163029), (1753, 159960), (1860, 150758), (2580, 108686), (2666, 105180), (3506, 79980), (3720, 75379), (3999, 70120), (5160, 54343), (5259, 53320), (5332, 52590), (6665, 42072), (7012, 39990), (7998, 35060), (8765, 31992), (10518, 26660), (10664, 26295), (13330, 21036), (14024, 19995), (15996, 17530)]