215340400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:587

約数の個数: 120

約数和(自身を含む): 570834000

約数和(自身を除く): 355493600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 109, 110, 176, 200, 218, 220, 275, 400, 436, 440, 449, 545, 550, 872, 880, 898, 1090, 1100, 1199, 1744, 1796, 2180, 2200, 2245, 2398, 2725, 3592, 4360, 4400, 4490, 4796, 4939, 5450, 5995, 7184, 8720, 8980, 9592, 9878, 10900, 11225, 11990, 17960, 19184, 19756, 21800, 22450, 23980, 24695, 29975, 35920, 39512, 43600, 44900, 47960, 48941, 49390, 59950, 79024, 89800, 95920, 97882, 98780, 119900, 123475, 179600, 195764, 197560, 239800, 244705, 246950, 391528, 395120, 479600, 489410, 493900, 538351, 783056, 978820, 987800, 1076702, 1223525, 1957640, 1975600, 2153404, 2447050, 2691755, 3915280, 4306808, 4894100, 5383510, 8613616, 9788200, 10767020, 13458775, 19576400, 21534040, 26917550, 43068080, 53835100, 107670200, 215340400]

約数ペア:

[(1, 215340400), (2, 107670200), (4, 53835100), (5, 43068080), (8, 26917550), (10, 21534040), (11, 19576400), (16, 13458775), (20, 10767020), (22, 9788200), (25, 8613616), (40, 5383510), (44, 4894100), (50, 4306808), (55, 3915280), (80, 2691755), (88, 2447050), (100, 2153404), (109, 1975600), (110, 1957640), (176, 1223525), (200, 1076702), (218, 987800), (220, 978820), (275, 783056), (400, 538351), (436, 493900), (440, 489410), (449, 479600), (545, 395120), (550, 391528), (872, 246950), (880, 244705), (898, 239800), (1090, 197560), (1100, 195764), (1199, 179600), (1744, 123475), (1796, 119900), (2180, 98780), (2200, 97882), (2245, 95920), (2398, 89800), (2725, 79024), (3592, 59950), (4360, 49390), (4400, 48941), (4490, 47960), (4796, 44900), (4939, 43600), (5450, 39512), (5995, 35920), (7184, 29975), (8720, 24695), (8980, 23980), (9592, 22450), (9878, 21800), (10900, 19756), (11225, 19184), (11990, 17960)]