31255520

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11491}}^1$

素因数の和:11523

約数の個数: 48

約数和(自身を含む): 78191568

約数和(自身を除く): 46936048

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 11491, 22982, 45964, 57455, 91928, 114910, 183856, 195347, 229820, 367712, 390694, 459640, 781388, 919280, 976735, 1562776, 1838560, 1953470, 3125552, 3906940, 6251104, 7813880, 15627760, 31255520]

約数ペア:

[(1, 31255520), (2, 15627760), (4, 7813880), (5, 6251104), (8, 3906940), (10, 3125552), (16, 1953470), (17, 1838560), (20, 1562776), (32, 976735), (34, 919280), (40, 781388), (68, 459640), (80, 390694), (85, 367712), (136, 229820), (160, 195347), (170, 183856), (272, 114910), (340, 91928), (544, 57455), (680, 45964), (1360, 22982), (2720, 11491)]