15972120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:686

約数の個数: 128

約数和(自身を含む): 55641600

約数和(自身を除く): 39669480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 90, 92, 108, 115, 120, 135, 138, 180, 184, 207, 216, 230, 270, 276, 345, 360, 414, 460, 540, 552, 621, 643, 690, 828, 920, 1035, 1080, 1242, 1286, 1380, 1656, 1929, 2070, 2484, 2572, 2760, 3105, 3215, 3858, 4140, 4968, 5144, 5787, 6210, 6430, 7716, 8280, 9645, 11574, 12420, 12860, 14789, 15432, 17361, 19290, 23148, 24840, 25720, 28935, 29578, 34722, 38580, 44367, 46296, 57870, 59156, 69444, 73945, 77160, 86805, 88734, 115740, 118312, 133101, 138888, 147890, 173610, 177468, 221835, 231480, 266202, 295780, 347220, 354936, 399303, 443670, 532404, 591560, 665505, 694440, 798606, 887340, 1064808, 1331010, 1597212, 1774680, 1996515, 2662020, 3194424, 3993030, 5324040, 7986060, 15972120]

約数ペア:

[(1, 15972120), (2, 7986060), (3, 5324040), (4, 3993030), (5, 3194424), (6, 2662020), (8, 1996515), (9, 1774680), (10, 1597212), (12, 1331010), (15, 1064808), (18, 887340), (20, 798606), (23, 694440), (24, 665505), (27, 591560), (30, 532404), (36, 443670), (40, 399303), (45, 354936), (46, 347220), (54, 295780), (60, 266202), (69, 231480), (72, 221835), (90, 177468), (92, 173610), (108, 147890), (115, 138888), (120, 133101), (135, 118312), (138, 115740), (180, 88734), (184, 86805), (207, 77160), (216, 73945), (230, 69444), (270, 59156), (276, 57870), (345, 46296), (360, 44367), (414, 38580), (460, 34722), (540, 29578), (552, 28935), (621, 25720), (643, 24840), (690, 23148), (828, 19290), (920, 17361), (1035, 15432), (1080, 14789), (1242, 12860), (1286, 12420), (1380, 11574), (1656, 9645), (1929, 8280), (2070, 7716), (2484, 6430), (2572, 6210), (2760, 5787), (3105, 5144), (3215, 4968), (3858, 4140)]