19218760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1409}}^1$

素因数の和:1462

約数の個数: 64

約数和(自身を含む): 48729600

約数和(自身を除く): 29510840

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, 1409, 1705, 2728, 2818, 3410, 5636, 6820, 7045, 11272, 13640, 14090, 15499, 28180, 30998, 43679, 56360, 61996, 77495, 87358, 123992, 154990, 174716, 218395, 309980, 349432, 436790, 480469, 619960, 873580, 960938, 1747160, 1921876, 2402345, 3843752, 4804690, 9609380, 19218760]

約数ペア:

[(1, 19218760), (2, 9609380), (4, 4804690), (5, 3843752), (8, 2402345), (10, 1921876), (11, 1747160), (20, 960938), (22, 873580), (31, 619960), (40, 480469), (44, 436790), (55, 349432), (62, 309980), (88, 218395), (110, 174716), (124, 154990), (155, 123992), (220, 87358), (248, 77495), (310, 61996), (341, 56360), (440, 43679), (620, 30998), (682, 28180), (1240, 15499), (1364, 14090), (1409, 13640), (1705, 11272), (2728, 7045), (2818, 6820), (3410, 5636)]