78362420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{1303}}^1$

素因数の和:1440

約数の個数: 48

約数和(自身を含む): 171752448

約数和(自身を除く): 93390028

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 97, 124, 155, 194, 310, 388, 485, 620, 970, 1303, 1940, 2606, 3007, 5212, 6014, 6515, 12028, 13030, 15035, 26060, 30070, 40393, 60140, 80786, 126391, 161572, 201965, 252782, 403930, 505564, 631955, 807860, 1263910, 2527820, 3918121, 7836242, 15672484, 19590605, 39181210, 78362420]

約数ペア:

[(1, 78362420), (2, 39181210), (4, 19590605), (5, 15672484), (10, 7836242), (20, 3918121), (31, 2527820), (62, 1263910), (97, 807860), (124, 631955), (155, 505564), (194, 403930), (310, 252782), (388, 201965), (485, 161572), (620, 126391), (970, 80786), (1303, 60140), (1940, 40393), (2606, 30070), (3007, 26060), (5212, 15035), (6014, 13030), (6515, 12028)]