420152920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{30803}}^1$

素因数の和:30856

約数の個数: 64

約数和(自身を含む): 1064586240

約数和(自身を除く): 644433320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 30803, 61606, 123212, 154015, 246424, 308030, 338833, 616060, 677666, 954893, 1232120, 1355332, 1694165, 1909786, 2710664, 3388330, 3819572, 4774465, 6776660, 7639144, 9548930, 10503823, 13553320, 19097860, 21007646, 38195720, 42015292, 52519115, 84030584, 105038230, 210076460, 420152920]

約数ペア:

[(1, 420152920), (2, 210076460), (4, 105038230), (5, 84030584), (8, 52519115), (10, 42015292), (11, 38195720), (20, 21007646), (22, 19097860), (31, 13553320), (40, 10503823), (44, 9548930), (55, 7639144), (62, 6776660), (88, 4774465), (110, 3819572), (124, 3388330), (155, 2710664), (220, 1909786), (248, 1694165), (310, 1355332), (341, 1232120), (440, 954893), (620, 677666), (682, 616060), (1240, 338833), (1364, 308030), (1705, 246424), (2728, 154015), (3410, 123212), (6820, 61606), (13640, 30803)]