28378400

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1867}}^1$

素因数の和:1906

約数の個数: 72

約数和(自身を含む): 72964080

約数和(自身を除く): 44585680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 76, 80, 95, 100, 152, 160, 190, 200, 304, 380, 400, 475, 608, 760, 800, 950, 1520, 1867, 1900, 3040, 3734, 3800, 7468, 7600, 9335, 14936, 15200, 18670, 29872, 35473, 37340, 46675, 59744, 70946, 74680, 93350, 141892, 149360, 177365, 186700, 283784, 298720, 354730, 373400, 567568, 709460, 746800, 886825, 1135136, 1418920, 1493600, 1773650, 2837840, 3547300, 5675680, 7094600, 14189200, 28378400]

約数ペア:

[(1, 28378400), (2, 14189200), (4, 7094600), (5, 5675680), (8, 3547300), (10, 2837840), (16, 1773650), (19, 1493600), (20, 1418920), (25, 1135136), (32, 886825), (38, 746800), (40, 709460), (50, 567568), (76, 373400), (80, 354730), (95, 298720), (100, 283784), (152, 186700), (160, 177365), (190, 149360), (200, 141892), (304, 93350), (380, 74680), (400, 70946), (475, 59744), (608, 46675), (760, 37340), (800, 35473), (950, 29872), (1520, 18670), (1867, 15200), (1900, 14936), (3040, 9335), (3734, 7600), (3800, 7468)]