263499460

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:642

約数の個数: 96

約数和(自身を含む): 655603200

約数和(自身を除く): 392103740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 343, 355, 490, 497, 541, 686, 710, 980, 994, 1082, 1372, 1420, 1715, 1988, 2164, 2485, 2705, 3430, 3479, 3787, 4970, 5410, 6860, 6958, 7574, 9940, 10820, 13916, 15148, 17395, 18935, 24353, 26509, 34790, 37870, 38411, 48706, 53018, 69580, 75740, 76822, 97412, 106036, 121765, 132545, 153644, 185563, 192055, 243530, 265090, 268877, 371126, 384110, 487060, 530180, 537754, 742252, 768220, 927815, 1075508, 1344385, 1855630, 1882139, 2688770, 3711260, 3764278, 5377540, 7528556, 9410695, 13174973, 18821390, 26349946, 37642780, 52699892, 65874865, 131749730, 263499460]

約数ペア:

[(1, 263499460), (2, 131749730), (4, 65874865), (5, 52699892), (7, 37642780), (10, 26349946), (14, 18821390), (20, 13174973), (28, 9410695), (35, 7528556), (49, 5377540), (70, 3764278), (71, 3711260), (98, 2688770), (140, 1882139), (142, 1855630), (196, 1344385), (245, 1075508), (284, 927815), (343, 768220), (355, 742252), (490, 537754), (497, 530180), (541, 487060), (686, 384110), (710, 371126), (980, 268877), (994, 265090), (1082, 243530), (1372, 192055), (1420, 185563), (1715, 153644), (1988, 132545), (2164, 121765), (2485, 106036), (2705, 97412), (3430, 76822), (3479, 75740), (3787, 69580), (4970, 53018), (5410, 48706), (6860, 38411), (6958, 37870), (7574, 34790), (9940, 26509), (10820, 24353), (13916, 18935), (15148, 17395)]