278380300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2609}}^1$

素因数の和:2731

約数の個数: 72

約数和(自身を含む): 666051120

約数和(自身を除く): 387670820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 97, 100, 110, 194, 220, 275, 388, 485, 550, 970, 1067, 1100, 1940, 2134, 2425, 2609, 4268, 4850, 5218, 5335, 9700, 10436, 10670, 13045, 21340, 26090, 26675, 28699, 52180, 53350, 57398, 65225, 106700, 114796, 130450, 143495, 253073, 260900, 286990, 506146, 573980, 717475, 1012292, 1265365, 1434950, 2530730, 2783803, 2869900, 5061460, 5567606, 6326825, 11135212, 12653650, 13919015, 25307300, 27838030, 55676060, 69595075, 139190150, 278380300]

約数ペア:

[(1, 278380300), (2, 139190150), (4, 69595075), (5, 55676060), (10, 27838030), (11, 25307300), (20, 13919015), (22, 12653650), (25, 11135212), (44, 6326825), (50, 5567606), (55, 5061460), (97, 2869900), (100, 2783803), (110, 2530730), (194, 1434950), (220, 1265365), (275, 1012292), (388, 717475), (485, 573980), (550, 506146), (970, 286990), (1067, 260900), (1100, 253073), (1940, 143495), (2134, 130450), (2425, 114796), (2609, 106700), (4268, 65225), (4850, 57398), (5218, 53350), (5335, 52180), (9700, 28699), (10436, 26675), (10670, 26090), (13045, 21340)]