20167515

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 38092800

約数和(自身を除く): 17925285

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 61, 79, 93, 135, 155, 183, 237, 279, 305, 395, 465, 549, 711, 837, 915, 1185, 1395, 1647, 1891, 2133, 2449, 2745, 3555, 4185, 4819, 5673, 7347, 8235, 9455, 10665, 12245, 14457, 17019, 22041, 24095, 28365, 36735, 43371, 51057, 66123, 72285, 85095, 110205, 130113, 149389, 216855, 255285, 330615, 448167, 650565, 746945, 1344501, 2240835, 4033503, 6722505, 20167515]

約数ペア:

[(1, 20167515), (3, 6722505), (5, 4033503), (9, 2240835), (15, 1344501), (27, 746945), (31, 650565), (45, 448167), (61, 330615), (79, 255285), (93, 216855), (135, 149389), (155, 130113), (183, 110205), (237, 85095), (279, 72285), (305, 66123), (395, 51057), (465, 43371), (549, 36735), (711, 28365), (837, 24095), (915, 22041), (1185, 17019), (1395, 14457), (1647, 12245), (1891, 10665), (2133, 9455), (2449, 8235), (2745, 7347), (3555, 5673), (4185, 4819)]