16400178

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 38384640

約数和(自身を除く): 21984462

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 97, 101, 186, 194, 202, 279, 291, 303, 558, 582, 606, 837, 873, 909, 1674, 1746, 1818, 2619, 2727, 3007, 3131, 5238, 5454, 6014, 6262, 9021, 9393, 9797, 18042, 18786, 19594, 27063, 28179, 29391, 54126, 56358, 58782, 81189, 84537, 88173, 162378, 169074, 176346, 264519, 303707, 529038, 607414, 911121, 1822242, 2733363, 5466726, 8200089, 16400178]

約数ペア:

[(1, 16400178), (2, 8200089), (3, 5466726), (6, 2733363), (9, 1822242), (18, 911121), (27, 607414), (31, 529038), (54, 303707), (62, 264519), (93, 176346), (97, 169074), (101, 162378), (186, 88173), (194, 84537), (202, 81189), (279, 58782), (291, 56358), (303, 54126), (558, 29391), (582, 28179), (606, 27063), (837, 19594), (873, 18786), (909, 18042), (1674, 9797), (1746, 9393), (1818, 9021), (2619, 6262), (2727, 6014), (3007, 5454), (3131, 5238)]