78184400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{3989}}^1$

素因数の和:4021

約数の個数: 90

約数和(自身を含む): 218560230

約数和(自身を除く): 140375830

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 2450, 2800, 3920, 3989, 4900, 7978, 9800, 15956, 19600, 19945, 27923, 31912, 39890, 55846, 63824, 79780, 99725, 111692, 139615, 159560, 195461, 199450, 223384, 279230, 319120, 390922, 398900, 446768, 558460, 698075, 781844, 797800, 977305, 1116920, 1396150, 1563688, 1595600, 1954610, 2233840, 2792300, 3127376, 3909220, 4886525, 5584600, 7818440, 9773050, 11169200, 15636880, 19546100, 39092200, 78184400]

約数ペア:

[(1, 78184400), (2, 39092200), (4, 19546100), (5, 15636880), (7, 11169200), (8, 9773050), (10, 7818440), (14, 5584600), (16, 4886525), (20, 3909220), (25, 3127376), (28, 2792300), (35, 2233840), (40, 1954610), (49, 1595600), (50, 1563688), (56, 1396150), (70, 1116920), (80, 977305), (98, 797800), (100, 781844), (112, 698075), (140, 558460), (175, 446768), (196, 398900), (200, 390922), (245, 319120), (280, 279230), (350, 223384), (392, 199450), (400, 195461), (490, 159560), (560, 139615), (700, 111692), (784, 99725), (980, 79780), (1225, 63824), (1400, 55846), (1960, 39890), (2450, 31912), (2800, 27923), (3920, 19945), (3989, 19600), (4900, 15956), (7978, 9800)]