18870960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1289}}^1$

素因数の和:1366

約数の個数: 80

約数和(自身を含む): 59505120

約数和(自身を除く): 40634160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1220, 1289, 1464, 1830, 2440, 2578, 2928, 3660, 3867, 4880, 5156, 6445, 7320, 7734, 10312, 12890, 14640, 15468, 19335, 20624, 25780, 30936, 38670, 51560, 61872, 77340, 78629, 103120, 154680, 157258, 235887, 309360, 314516, 393145, 471774, 629032, 786290, 943548, 1179435, 1258064, 1572580, 1887096, 2358870, 3145160, 3774192, 4717740, 6290320, 9435480, 18870960]

約数ペア:

[(1, 18870960), (2, 9435480), (3, 6290320), (4, 4717740), (5, 3774192), (6, 3145160), (8, 2358870), (10, 1887096), (12, 1572580), (15, 1258064), (16, 1179435), (20, 943548), (24, 786290), (30, 629032), (40, 471774), (48, 393145), (60, 314516), (61, 309360), (80, 235887), (120, 157258), (122, 154680), (183, 103120), (240, 78629), (244, 77340), (305, 61872), (366, 51560), (488, 38670), (610, 30936), (732, 25780), (915, 20624), (976, 19335), (1220, 15468), (1289, 14640), (1464, 12890), (1830, 10312), (2440, 7734), (2578, 7320), (2928, 6445), (3660, 5156), (3867, 4880)]