655720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 1614060

約数和(自身を除く): 958340

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 169, 194, 260, 338, 388, 485, 520, 676, 776, 845, 970, 1261, 1352, 1690, 1940, 2522, 3380, 3880, 5044, 6305, 6760, 10088, 12610, 16393, 25220, 32786, 50440, 65572, 81965, 131144, 163930, 327860, 655720]

約数ペア:

[(1, 655720), (2, 327860), (4, 163930), (5, 131144), (8, 81965), (10, 65572), (13, 50440), (20, 32786), (26, 25220), (40, 16393), (52, 12610), (65, 10088), (97, 6760), (104, 6305), (130, 5044), (169, 3880), (194, 3380), (260, 2522), (338, 1940), (388, 1690), (485, 1352), (520, 1261), (676, 970), (776, 845)]