18557840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1069}}^1$

素因数の和:1120

約数の個数: 80

約数和(自身を含む): 50949120

約数和(自身を除く): 32391280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1069, 1085, 1240, 1736, 2138, 2170, 2480, 3472, 4276, 4340, 5345, 7483, 8552, 8680, 10690, 14966, 17104, 17360, 21380, 29932, 33139, 37415, 42760, 59864, 66278, 74830, 85520, 119728, 132556, 149660, 165695, 231973, 265112, 299320, 331390, 463946, 530224, 598640, 662780, 927892, 1159865, 1325560, 1855784, 2319730, 2651120, 3711568, 4639460, 9278920, 18557840]

約数ペア:

[(1, 18557840), (2, 9278920), (4, 4639460), (5, 3711568), (7, 2651120), (8, 2319730), (10, 1855784), (14, 1325560), (16, 1159865), (20, 927892), (28, 662780), (31, 598640), (35, 530224), (40, 463946), (56, 331390), (62, 299320), (70, 265112), (80, 231973), (112, 165695), (124, 149660), (140, 132556), (155, 119728), (217, 85520), (248, 74830), (280, 66278), (310, 59864), (434, 42760), (496, 37415), (560, 33139), (620, 29932), (868, 21380), (1069, 17360), (1085, 17104), (1240, 14966), (1736, 10690), (2138, 8680), (2170, 8552), (2480, 7483), (3472, 5345), (4276, 4340)]