127907800

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 309355200

約数和(自身を除く): 181447400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 107, 139, 172, 200, 214, 215, 278, 344, 428, 430, 535, 556, 695, 856, 860, 1070, 1075, 1112, 1390, 1720, 2140, 2150, 2675, 2780, 3475, 4280, 4300, 4601, 5350, 5560, 5977, 6950, 8600, 9202, 10700, 11954, 13900, 14873, 18404, 21400, 23005, 23908, 27800, 29746, 29885, 36808, 46010, 47816, 59492, 59770, 74365, 92020, 115025, 118984, 119540, 148730, 149425, 184040, 230050, 239080, 297460, 298850, 371825, 460100, 594920, 597700, 639539, 743650, 920200, 1195400, 1279078, 1487300, 2558156, 2974600, 3197695, 5116312, 6395390, 12790780, 15988475, 25581560, 31976950, 63953900, 127907800]

約数ペア:

[(1, 127907800), (2, 63953900), (4, 31976950), (5, 25581560), (8, 15988475), (10, 12790780), (20, 6395390), (25, 5116312), (40, 3197695), (43, 2974600), (50, 2558156), (86, 1487300), (100, 1279078), (107, 1195400), (139, 920200), (172, 743650), (200, 639539), (214, 597700), (215, 594920), (278, 460100), (344, 371825), (428, 298850), (430, 297460), (535, 239080), (556, 230050), (695, 184040), (856, 149425), (860, 148730), (1070, 119540), (1075, 118984), (1112, 115025), (1390, 92020), (1720, 74365), (2140, 59770), (2150, 59492), (2675, 47816), (2780, 46010), (3475, 36808), (4280, 29885), (4300, 29746), (4601, 27800), (5350, 23908), (5560, 23005), (5977, 21400), (6950, 18404), (8600, 14873), (9202, 13900), (10700, 11954)]