90881420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 227598336

約数和(自身を除く): 136716916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 71, 82, 140, 142, 164, 205, 223, 284, 287, 355, 410, 446, 497, 574, 710, 820, 892, 994, 1115, 1148, 1420, 1435, 1561, 1988, 2230, 2485, 2870, 2911, 3122, 4460, 4970, 5740, 5822, 6244, 7805, 9143, 9940, 11644, 14555, 15610, 15833, 18286, 20377, 29110, 31220, 31666, 36572, 40754, 45715, 58220, 63332, 64001, 79165, 81508, 91430, 101885, 110831, 128002, 158330, 182860, 203770, 221662, 256004, 316660, 320005, 407540, 443324, 554155, 640010, 649153, 1108310, 1280020, 1298306, 2216620, 2596612, 3245765, 4544071, 6491530, 9088142, 12983060, 18176284, 22720355, 45440710, 90881420]

約数ペア:

[(1, 90881420), (2, 45440710), (4, 22720355), (5, 18176284), (7, 12983060), (10, 9088142), (14, 6491530), (20, 4544071), (28, 3245765), (35, 2596612), (41, 2216620), (70, 1298306), (71, 1280020), (82, 1108310), (140, 649153), (142, 640010), (164, 554155), (205, 443324), (223, 407540), (284, 320005), (287, 316660), (355, 256004), (410, 221662), (446, 203770), (497, 182860), (574, 158330), (710, 128002), (820, 110831), (892, 101885), (994, 91430), (1115, 81508), (1148, 79165), (1420, 64001), (1435, 63332), (1561, 58220), (1988, 45715), (2230, 40754), (2485, 36572), (2870, 31666), (2911, 31220), (3122, 29110), (4460, 20377), (4970, 18286), (5740, 15833), (5822, 15610), (6244, 14555), (7805, 11644), (9143, 9940)]