277420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 691488

約数和(自身を除く): 414068

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 97, 110, 130, 143, 194, 220, 260, 286, 388, 485, 572, 715, 970, 1067, 1261, 1430, 1940, 2134, 2522, 2860, 4268, 5044, 5335, 6305, 10670, 12610, 13871, 21340, 25220, 27742, 55484, 69355, 138710, 277420]

約数ペア:

[(1, 277420), (2, 138710), (4, 69355), (5, 55484), (10, 27742), (11, 25220), (13, 21340), (20, 13871), (22, 12610), (26, 10670), (44, 6305), (52, 5335), (55, 5044), (65, 4268), (97, 2860), (110, 2522), (130, 2134), (143, 1940), (194, 1430), (220, 1261), (260, 1067), (286, 970), (388, 715), (485, 572)]