1240722920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:499

約数の個数: 128

約数和(自身を含む): 2999808000

約数和(自身を除く): 1759085080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 47, 61, 62, 94, 122, 124, 155, 188, 235, 244, 248, 305, 310, 349, 376, 470, 488, 610, 620, 698, 940, 1220, 1240, 1396, 1457, 1745, 1880, 1891, 2440, 2792, 2867, 2914, 3490, 3782, 5734, 5828, 6980, 7285, 7564, 9455, 10819, 11468, 11656, 13960, 14335, 14570, 15128, 16403, 18910, 21289, 21638, 22936, 28670, 29140, 32806, 37820, 42578, 43276, 54095, 57340, 58280, 65612, 75640, 82015, 85156, 86552, 88877, 106445, 108190, 114680, 131224, 164030, 170312, 177754, 212890, 216380, 328060, 355508, 425780, 432760, 444385, 508493, 656120, 659959, 711016, 851560, 888770, 1000583, 1016986, 1319918, 1777540, 2001166, 2033972, 2542465, 2639836, 3299795, 3555080, 4002332, 4067944, 5002915, 5084930, 5279672, 6599590, 8004664, 10005830, 10169860, 13199180, 20011660, 20339720, 26398360, 31018073, 40023320, 62036146, 124072292, 155090365, 248144584, 310180730, 620361460, 1240722920]

約数ペア:

[(1, 1240722920), (2, 620361460), (4, 310180730), (5, 248144584), (8, 155090365), (10, 124072292), (20, 62036146), (31, 40023320), (40, 31018073), (47, 26398360), (61, 20339720), (62, 20011660), (94, 13199180), (122, 10169860), (124, 10005830), (155, 8004664), (188, 6599590), (235, 5279672), (244, 5084930), (248, 5002915), (305, 4067944), (310, 4002332), (349, 3555080), (376, 3299795), (470, 2639836), (488, 2542465), (610, 2033972), (620, 2001166), (698, 1777540), (940, 1319918), (1220, 1016986), (1240, 1000583), (1396, 888770), (1457, 851560), (1745, 711016), (1880, 659959), (1891, 656120), (2440, 508493), (2792, 444385), (2867, 432760), (2914, 425780), (3490, 355508), (3782, 328060), (5734, 216380), (5828, 212890), (6980, 177754), (7285, 170312), (7564, 164030), (9455, 131224), (10819, 114680), (11468, 108190), (11656, 106445), (13960, 88877), (14335, 86552), (14570, 85156), (15128, 82015), (16403, 75640), (18910, 65612), (21289, 58280), (21638, 57340), (22936, 54095), (28670, 43276), (29140, 42578), (32806, 37820)]