401299808

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19687}}^1$

素因数の和:19724

約数の個数: 72

約数和(自身を含む): 989794512

約数和(自身を除く): 588494704

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 637, 728, 784, 1274, 1456, 1568, 2548, 2912, 5096, 10192, 19687, 20384, 39374, 78748, 137809, 157496, 255931, 275618, 314992, 511862, 551236, 629984, 964663, 1023724, 1102472, 1791517, 1929326, 2047448, 2204944, 3583034, 3858652, 4094896, 4409888, 7166068, 7717304, 8189792, 12540619, 14332136, 15434608, 25081238, 28664272, 30869216, 50162476, 57328544, 100324952, 200649904, 401299808]

約数ペア:

[(1, 401299808), (2, 200649904), (4, 100324952), (7, 57328544), (8, 50162476), (13, 30869216), (14, 28664272), (16, 25081238), (26, 15434608), (28, 14332136), (32, 12540619), (49, 8189792), (52, 7717304), (56, 7166068), (91, 4409888), (98, 4094896), (104, 3858652), (112, 3583034), (182, 2204944), (196, 2047448), (208, 1929326), (224, 1791517), (364, 1102472), (392, 1023724), (416, 964663), (637, 629984), (728, 551236), (784, 511862), (1274, 314992), (1456, 275618), (1568, 255931), (2548, 157496), (2912, 137809), (5096, 78748), (10192, 39374), (19687, 20384)]