440639750

素因数分解:

$2^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:626

約数の個数: 64

約数和(自身を含む): 867335040

約数和(自身を除く): 426695290

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 125, 197, 230, 250, 389, 394, 575, 778, 985, 1150, 1945, 1970, 2875, 3890, 4531, 4925, 5750, 8947, 9062, 9725, 9850, 17894, 19450, 22655, 24625, 44735, 45310, 48625, 49250, 76633, 89470, 97250, 113275, 153266, 223675, 226550, 383165, 447350, 566375, 766330, 1118375, 1132750, 1762559, 1915825, 2236750, 3525118, 3831650, 8812795, 9579125, 17625590, 19158250, 44063975, 88127950, 220319875, 440639750]

約数ペア:

[(1, 440639750), (2, 220319875), (5, 88127950), (10, 44063975), (23, 19158250), (25, 17625590), (46, 9579125), (50, 8812795), (115, 3831650), (125, 3525118), (197, 2236750), (230, 1915825), (250, 1762559), (389, 1132750), (394, 1118375), (575, 766330), (778, 566375), (985, 447350), (1150, 383165), (1945, 226550), (1970, 223675), (2875, 153266), (3890, 113275), (4531, 97250), (4925, 89470), (5750, 76633), (8947, 49250), (9062, 48625), (9725, 45310), (9850, 44735), (17894, 24625), (19450, 22655)]