18539840

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:280

約数の個数: 112

約数和(自身を含む): 50474880

約数和(自身を除く): 31935040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 55, 64, 80, 88, 92, 110, 115, 160, 176, 184, 220, 229, 230, 253, 320, 352, 368, 440, 458, 460, 506, 704, 736, 880, 916, 920, 1012, 1145, 1265, 1472, 1760, 1832, 1840, 2024, 2290, 2519, 2530, 3520, 3664, 3680, 4048, 4580, 5038, 5060, 5267, 7328, 7360, 8096, 9160, 10076, 10120, 10534, 12595, 14656, 16192, 18320, 20152, 20240, 21068, 25190, 26335, 36640, 40304, 40480, 42136, 50380, 52670, 57937, 73280, 80608, 80960, 84272, 100760, 105340, 115874, 161216, 168544, 201520, 210680, 231748, 289685, 337088, 403040, 421360, 463496, 579370, 806080, 842720, 926992, 1158740, 1685440, 1853984, 2317480, 3707968, 4634960, 9269920, 18539840]

約数ペア:

[(1, 18539840), (2, 9269920), (4, 4634960), (5, 3707968), (8, 2317480), (10, 1853984), (11, 1685440), (16, 1158740), (20, 926992), (22, 842720), (23, 806080), (32, 579370), (40, 463496), (44, 421360), (46, 403040), (55, 337088), (64, 289685), (80, 231748), (88, 210680), (92, 201520), (110, 168544), (115, 161216), (160, 115874), (176, 105340), (184, 100760), (220, 84272), (229, 80960), (230, 80608), (253, 73280), (320, 57937), (352, 52670), (368, 50380), (440, 42136), (458, 40480), (460, 40304), (506, 36640), (704, 26335), (736, 25190), (880, 21068), (916, 20240), (920, 20152), (1012, 18320), (1145, 16192), (1265, 14656), (1472, 12595), (1760, 10534), (1832, 10120), (1840, 10076), (2024, 9160), (2290, 8096), (2519, 7360), (2530, 7328), (3520, 5267), (3664, 5060), (3680, 5038), (4048, 4580)]