28765240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5407}}^1$

素因数の和:5444

約数の個数: 64

約数和(自身を含む): 77875200

約数和(自身を除く): 49109960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 5407, 10814, 21628, 27035, 37849, 43256, 54070, 75698, 102733, 108140, 151396, 189245, 205466, 216280, 302792, 378490, 410932, 513665, 719131, 756980, 821864, 1027330, 1438262, 1513960, 2054660, 2876524, 3595655, 4109320, 5753048, 7191310, 14382620, 28765240]

約数ペア:

[(1, 28765240), (2, 14382620), (4, 7191310), (5, 5753048), (7, 4109320), (8, 3595655), (10, 2876524), (14, 2054660), (19, 1513960), (20, 1438262), (28, 1027330), (35, 821864), (38, 756980), (40, 719131), (56, 513665), (70, 410932), (76, 378490), (95, 302792), (133, 216280), (140, 205466), (152, 189245), (190, 151396), (266, 108140), (280, 102733), (380, 75698), (532, 54070), (665, 43256), (760, 37849), (1064, 27035), (1330, 21628), (2660, 10814), (5320, 5407)]