78840104

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 174182400

約数和(自身を除く): 95342296

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 79, 142, 158, 251, 284, 316, 497, 502, 553, 568, 632, 994, 1004, 1106, 1757, 1988, 2008, 2212, 3514, 3976, 4424, 5609, 7028, 11218, 14056, 17821, 19829, 22436, 35642, 39263, 39658, 44872, 71284, 78526, 79316, 124747, 138803, 142568, 157052, 158632, 249494, 277606, 314104, 498988, 555212, 997976, 1110424, 1407859, 2815718, 5631436, 9855013, 11262872, 19710026, 39420052, 78840104]

約数ペア:

[(1, 78840104), (2, 39420052), (4, 19710026), (7, 11262872), (8, 9855013), (14, 5631436), (28, 2815718), (56, 1407859), (71, 1110424), (79, 997976), (142, 555212), (158, 498988), (251, 314104), (284, 277606), (316, 249494), (497, 158632), (502, 157052), (553, 142568), (568, 138803), (632, 124747), (994, 79316), (1004, 78526), (1106, 71284), (1757, 44872), (1988, 39658), (2008, 39263), (2212, 35642), (3514, 22436), (3976, 19829), (4424, 17821), (5609, 14056), (7028, 11218)]