42268720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:542

約数の個数: 80

約数和(自身を含む): 107180640

約数和(自身を除く): 64911920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 419, 485, 520, 776, 838, 970, 1040, 1261, 1552, 1676, 1940, 2095, 2522, 3352, 3880, 4190, 5044, 5447, 6305, 6704, 7760, 8380, 10088, 10894, 12610, 16760, 20176, 21788, 25220, 27235, 33520, 40643, 43576, 50440, 54470, 81286, 87152, 100880, 108940, 162572, 203215, 217880, 325144, 406430, 435760, 528359, 650288, 812860, 1056718, 1625720, 2113436, 2641795, 3251440, 4226872, 5283590, 8453744, 10567180, 21134360, 42268720]

約数ペア:

[(1, 42268720), (2, 21134360), (4, 10567180), (5, 8453744), (8, 5283590), (10, 4226872), (13, 3251440), (16, 2641795), (20, 2113436), (26, 1625720), (40, 1056718), (52, 812860), (65, 650288), (80, 528359), (97, 435760), (104, 406430), (130, 325144), (194, 217880), (208, 203215), (260, 162572), (388, 108940), (419, 100880), (485, 87152), (520, 81286), (776, 54470), (838, 50440), (970, 43576), (1040, 40643), (1261, 33520), (1552, 27235), (1676, 25220), (1940, 21788), (2095, 20176), (2522, 16760), (3352, 12610), (3880, 10894), (4190, 10088), (5044, 8380), (5447, 7760), (6305, 6704)]