655902010

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{8039}}^1$

素因数の和:8286

約数の個数: 32

約数和(自身を含む): 1215648000

約数和(自身を除く): 559745990

約数列:

[1, 2, 5, 10, 41, 82, 199, 205, 398, 410, 995, 1990, 8039, 8159, 16078, 16318, 40195, 40795, 80390, 81590, 329599, 659198, 1599761, 1647995, 3199522, 3295990, 7998805, 15997610, 65590201, 131180402, 327951005, 655902010]

約数ペア:

[(1, 655902010), (2, 327951005), (5, 131180402), (10, 65590201), (41, 15997610), (82, 7998805), (199, 3295990), (205, 3199522), (398, 1647995), (410, 1599761), (995, 659198), (1990, 329599), (8039, 81590), (8159, 80390), (16078, 40795), (16318, 40195)]