197440750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{769}}^1$

素因数の和:878

約数の個数: 64

約数和(自身を含む): 403603200

約数和(自身を除く): 206162450

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 125, 130, 158, 250, 325, 395, 650, 769, 790, 1027, 1538, 1625, 1975, 2054, 3250, 3845, 3950, 5135, 7690, 9875, 9997, 10270, 19225, 19750, 19994, 25675, 38450, 49985, 51350, 60751, 96125, 99970, 121502, 128375, 192250, 249925, 256750, 303755, 499850, 607510, 789763, 1249625, 1518775, 1579526, 2499250, 3037550, 3948815, 7593875, 7897630, 15187750, 19744075, 39488150, 98720375, 197440750]

約数ペア:

[(1, 197440750), (2, 98720375), (5, 39488150), (10, 19744075), (13, 15187750), (25, 7897630), (26, 7593875), (50, 3948815), (65, 3037550), (79, 2499250), (125, 1579526), (130, 1518775), (158, 1249625), (250, 789763), (325, 607510), (395, 499850), (650, 303755), (769, 256750), (790, 249925), (1027, 192250), (1538, 128375), (1625, 121502), (1975, 99970), (2054, 96125), (3250, 60751), (3845, 51350), (3950, 49985), (5135, 38450), (7690, 25675), (9875, 19994), (9997, 19750), (10270, 19225)]