28165396

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 62052480

約数和(自身を除く): 33887084

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 79, 98, 107, 119, 158, 196, 214, 238, 316, 428, 476, 553, 749, 833, 1106, 1343, 1498, 1666, 1819, 2212, 2686, 2996, 3332, 3638, 3871, 5243, 5372, 7276, 7742, 8453, 9401, 10486, 12733, 15484, 16906, 18802, 20972, 25466, 33812, 37604, 50932, 59171, 65807, 89131, 118342, 131614, 143701, 178262, 236684, 263228, 287402, 356524, 414197, 574804, 828394, 1005907, 1656788, 2011814, 4023628, 7041349, 14082698, 28165396]

約数ペア:

[(1, 28165396), (2, 14082698), (4, 7041349), (7, 4023628), (14, 2011814), (17, 1656788), (28, 1005907), (34, 828394), (49, 574804), (68, 414197), (79, 356524), (98, 287402), (107, 263228), (119, 236684), (158, 178262), (196, 143701), (214, 131614), (238, 118342), (316, 89131), (428, 65807), (476, 59171), (553, 50932), (749, 37604), (833, 33812), (1106, 25466), (1343, 20972), (1498, 18802), (1666, 16906), (1819, 15484), (2212, 12733), (2686, 10486), (2996, 9401), (3332, 8453), (3638, 7742), (3871, 7276), (5243, 5372)]