4219720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 10160640

約数和(自身を除く): 5940920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 83, 124, 155, 164, 166, 205, 248, 310, 328, 332, 410, 415, 620, 664, 820, 830, 1240, 1271, 1640, 1660, 2542, 2573, 3320, 3403, 5084, 5146, 6355, 6806, 10168, 10292, 12710, 12865, 13612, 17015, 20584, 25420, 25730, 27224, 34030, 50840, 51460, 68060, 102920, 105493, 136120, 210986, 421972, 527465, 843944, 1054930, 2109860, 4219720]

約数ペア:

[(1, 4219720), (2, 2109860), (4, 1054930), (5, 843944), (8, 527465), (10, 421972), (20, 210986), (31, 136120), (40, 105493), (41, 102920), (62, 68060), (82, 51460), (83, 50840), (124, 34030), (155, 27224), (164, 25730), (166, 25420), (205, 20584), (248, 17015), (310, 13612), (328, 12865), (332, 12710), (410, 10292), (415, 10168), (620, 6806), (664, 6355), (820, 5146), (830, 5084), (1240, 3403), (1271, 3320), (1640, 2573), (1660, 2542)]