42121980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{971}}^1$

素因数の和:1227

約数の個数: 72

約数和(自身を含む): 128432304

約数和(自身を除く): 86310324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 241, 482, 723, 964, 971, 1205, 1446, 1942, 2169, 2410, 2892, 2913, 3615, 3884, 4338, 4820, 4855, 5826, 7230, 8676, 8739, 9710, 10845, 11652, 14460, 14565, 17478, 19420, 21690, 29130, 34956, 43380, 43695, 58260, 87390, 174780, 234011, 468022, 702033, 936044, 1170055, 1404066, 2106099, 2340110, 2808132, 3510165, 4212198, 4680220, 7020330, 8424396, 10530495, 14040660, 21060990, 42121980]

約数ペア:

[(1, 42121980), (2, 21060990), (3, 14040660), (4, 10530495), (5, 8424396), (6, 7020330), (9, 4680220), (10, 4212198), (12, 3510165), (15, 2808132), (18, 2340110), (20, 2106099), (30, 1404066), (36, 1170055), (45, 936044), (60, 702033), (90, 468022), (180, 234011), (241, 174780), (482, 87390), (723, 58260), (964, 43695), (971, 43380), (1205, 34956), (1446, 29130), (1942, 21690), (2169, 19420), (2410, 17478), (2892, 14565), (2913, 14460), (3615, 11652), (3884, 10845), (4338, 9710), (4820, 8739), (4855, 8676), (5826, 7230)]