18783540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{433}}^1$

素因数の和:689

約数の個数: 72

約数和(自身を含む): 57345288

約数和(自身を除く): 38561748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 241, 433, 482, 723, 866, 964, 1205, 1299, 1446, 1732, 2165, 2169, 2410, 2598, 2892, 3615, 3897, 4330, 4338, 4820, 5196, 6495, 7230, 7794, 8660, 8676, 10845, 12990, 14460, 15588, 19485, 21690, 25980, 38970, 43380, 77940, 104353, 208706, 313059, 417412, 521765, 626118, 939177, 1043530, 1252236, 1565295, 1878354, 2087060, 3130590, 3756708, 4695885, 6261180, 9391770, 18783540]

約数ペア:

[(1, 18783540), (2, 9391770), (3, 6261180), (4, 4695885), (5, 3756708), (6, 3130590), (9, 2087060), (10, 1878354), (12, 1565295), (15, 1252236), (18, 1043530), (20, 939177), (30, 626118), (36, 521765), (45, 417412), (60, 313059), (90, 208706), (180, 104353), (241, 77940), (433, 43380), (482, 38970), (723, 25980), (866, 21690), (964, 19485), (1205, 15588), (1299, 14460), (1446, 12990), (1732, 10845), (2165, 8676), (2169, 8660), (2410, 7794), (2598, 7230), (2892, 6495), (3615, 5196), (3897, 4820), (4330, 4338)]