888900780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{644131}}^1$

素因数の和:644166

約数の個数: 48

約数和(自身を含む): 2597140224

約数和(自身を除く): 1708239444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 644131, 1288262, 1932393, 2576524, 3220655, 3864786, 6441310, 7729572, 9661965, 12882620, 14815013, 19323930, 29630026, 38647860, 44445039, 59260052, 74075065, 88890078, 148150130, 177780156, 222225195, 296300260, 444450390, 888900780]

約数ペア:

[(1, 888900780), (2, 444450390), (3, 296300260), (4, 222225195), (5, 177780156), (6, 148150130), (10, 88890078), (12, 74075065), (15, 59260052), (20, 44445039), (23, 38647860), (30, 29630026), (46, 19323930), (60, 14815013), (69, 12882620), (92, 9661965), (115, 7729572), (138, 6441310), (230, 3864786), (276, 3220655), (345, 2576524), (460, 1932393), (690, 1288262), (1380, 644131)]