28951920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:607

約数の個数: 120

約数和(自身を含む): 98654400

約数和(自身を除く): 69702480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 79, 80, 90, 120, 144, 158, 180, 237, 240, 316, 360, 395, 474, 509, 632, 711, 720, 790, 948, 1018, 1185, 1264, 1422, 1527, 1580, 1896, 2036, 2370, 2545, 2844, 3054, 3160, 3555, 3792, 4072, 4581, 4740, 5090, 5688, 6108, 6320, 7110, 7635, 8144, 9162, 9480, 10180, 11376, 12216, 14220, 15270, 18324, 18960, 20360, 22905, 24432, 28440, 30540, 36648, 40211, 40720, 45810, 56880, 61080, 73296, 80422, 91620, 120633, 122160, 160844, 183240, 201055, 241266, 321688, 361899, 366480, 402110, 482532, 603165, 643376, 723798, 804220, 965064, 1206330, 1447596, 1608440, 1809495, 1930128, 2412660, 2895192, 3216880, 3618990, 4825320, 5790384, 7237980, 9650640, 14475960, 28951920]

約数ペア:

[(1, 28951920), (2, 14475960), (3, 9650640), (4, 7237980), (5, 5790384), (6, 4825320), (8, 3618990), (9, 3216880), (10, 2895192), (12, 2412660), (15, 1930128), (16, 1809495), (18, 1608440), (20, 1447596), (24, 1206330), (30, 965064), (36, 804220), (40, 723798), (45, 643376), (48, 603165), (60, 482532), (72, 402110), (79, 366480), (80, 361899), (90, 321688), (120, 241266), (144, 201055), (158, 183240), (180, 160844), (237, 122160), (240, 120633), (316, 91620), (360, 80422), (395, 73296), (474, 61080), (509, 56880), (632, 45810), (711, 40720), (720, 40211), (790, 36648), (948, 30540), (1018, 28440), (1185, 24432), (1264, 22905), (1422, 20360), (1527, 18960), (1580, 18324), (1896, 15270), (2036, 14220), (2370, 12216), (2545, 11376), (2844, 10180), (3054, 9480), (3160, 9162), (3555, 8144), (3792, 7635), (4072, 7110), (4581, 6320), (4740, 6108), (5090, 5688)]