15999120

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{823}}^1$

素因数の和:851

約数の個数: 120

約数和(自身を含む): 55788096

約数和(自身を除く): 39788976

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 823, 972, 1080, 1215, 1296, 1620, 1646, 1944, 2160, 2430, 2469, 3240, 3292, 3888, 4115, 4860, 4938, 6480, 6584, 7407, 8230, 9720, 9876, 12345, 13168, 14814, 16460, 19440, 19752, 22221, 24690, 29628, 32920, 37035, 39504, 44442, 49380, 59256, 65840, 66663, 74070, 88884, 98760, 111105, 118512, 133326, 148140, 177768, 197520, 199989, 222210, 266652, 296280, 333315, 355536, 399978, 444420, 533304, 592560, 666630, 799956, 888840, 999945, 1066608, 1333260, 1599912, 1777680, 1999890, 2666520, 3199824, 3999780, 5333040, 7999560, 15999120]

約数ペア:

[(1, 15999120), (2, 7999560), (3, 5333040), (4, 3999780), (5, 3199824), (6, 2666520), (8, 1999890), (9, 1777680), (10, 1599912), (12, 1333260), (15, 1066608), (16, 999945), (18, 888840), (20, 799956), (24, 666630), (27, 592560), (30, 533304), (36, 444420), (40, 399978), (45, 355536), (48, 333315), (54, 296280), (60, 266652), (72, 222210), (80, 199989), (81, 197520), (90, 177768), (108, 148140), (120, 133326), (135, 118512), (144, 111105), (162, 98760), (180, 88884), (216, 74070), (240, 66663), (243, 65840), (270, 59256), (324, 49380), (360, 44442), (405, 39504), (432, 37035), (486, 32920), (540, 29628), (648, 24690), (720, 22221), (810, 19752), (823, 19440), (972, 16460), (1080, 14814), (1215, 13168), (1296, 12345), (1620, 9876), (1646, 9720), (1944, 8230), (2160, 7407), (2430, 6584), (2469, 6480), (3240, 4938), (3292, 4860), (3888, 4115)]