689819440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1\times {\mathrm{797}}^1$

素因数の和:1190

約数の個数: 80

約数和(自身を含む): 1662393600

約数和(自身を除く): 972574160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 349, 496, 620, 698, 797, 1240, 1396, 1594, 1745, 2480, 2792, 3188, 3490, 3985, 5584, 6376, 6980, 7970, 10819, 12752, 13960, 15940, 21638, 24707, 27920, 31880, 43276, 49414, 54095, 63760, 86552, 98828, 108190, 123535, 173104, 197656, 216380, 247070, 278153, 395312, 432760, 494140, 556306, 865520, 988280, 1112612, 1390765, 1976560, 2225224, 2781530, 4450448, 5563060, 8622743, 11126120, 17245486, 22252240, 34490972, 43113715, 68981944, 86227430, 137963888, 172454860, 344909720, 689819440]

約数ペア:

[(1, 689819440), (2, 344909720), (4, 172454860), (5, 137963888), (8, 86227430), (10, 68981944), (16, 43113715), (20, 34490972), (31, 22252240), (40, 17245486), (62, 11126120), (80, 8622743), (124, 5563060), (155, 4450448), (248, 2781530), (310, 2225224), (349, 1976560), (496, 1390765), (620, 1112612), (698, 988280), (797, 865520), (1240, 556306), (1396, 494140), (1594, 432760), (1745, 395312), (2480, 278153), (2792, 247070), (3188, 216380), (3490, 197656), (3985, 173104), (5584, 123535), (6376, 108190), (6980, 98828), (7970, 86552), (10819, 63760), (12752, 54095), (13960, 49414), (15940, 43276), (21638, 31880), (24707, 27920)]