389495080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{18269}}^1$

素因数の和:18334

約数の個数: 64

約数和(自身を含む): 966848400

約数和(自身を除く): 577353320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1640, 2132, 2665, 4264, 5330, 10660, 18269, 21320, 36538, 73076, 91345, 146152, 182690, 237497, 365380, 474994, 730760, 749029, 949988, 1187485, 1498058, 1899976, 2374970, 2996116, 3745145, 4749940, 5992232, 7490290, 9499880, 9737377, 14980580, 19474754, 29961160, 38949508, 48686885, 77899016, 97373770, 194747540, 389495080]

約数ペア:

[(1, 389495080), (2, 194747540), (4, 97373770), (5, 77899016), (8, 48686885), (10, 38949508), (13, 29961160), (20, 19474754), (26, 14980580), (40, 9737377), (41, 9499880), (52, 7490290), (65, 5992232), (82, 4749940), (104, 3745145), (130, 2996116), (164, 2374970), (205, 1899976), (260, 1498058), (328, 1187485), (410, 949988), (520, 749029), (533, 730760), (820, 474994), (1066, 365380), (1640, 237497), (2132, 182690), (2665, 146152), (4264, 91345), (5330, 73076), (10660, 36538), (18269, 21320)]