28379540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 73543680

約数和(自身を除く): 45164140

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 47, 70, 76, 94, 95, 133, 140, 188, 190, 227, 235, 266, 329, 380, 454, 470, 532, 658, 665, 893, 908, 940, 1135, 1316, 1330, 1589, 1645, 1786, 2270, 2660, 3178, 3290, 3572, 4313, 4465, 4540, 6251, 6356, 6580, 7945, 8626, 8930, 10669, 12502, 15890, 17252, 17860, 21338, 21565, 25004, 30191, 31255, 31780, 42676, 43130, 53345, 60382, 62510, 74683, 86260, 106690, 120764, 125020, 149366, 150955, 202711, 213380, 298732, 301910, 373415, 405422, 603820, 746830, 810844, 1013555, 1418977, 1493660, 2027110, 2837954, 4054220, 5675908, 7094885, 14189770, 28379540]

約数ペア:

[(1, 28379540), (2, 14189770), (4, 7094885), (5, 5675908), (7, 4054220), (10, 2837954), (14, 2027110), (19, 1493660), (20, 1418977), (28, 1013555), (35, 810844), (38, 746830), (47, 603820), (70, 405422), (76, 373415), (94, 301910), (95, 298732), (133, 213380), (140, 202711), (188, 150955), (190, 149366), (227, 125020), (235, 120764), (266, 106690), (329, 86260), (380, 74683), (454, 62510), (470, 60382), (532, 53345), (658, 43130), (665, 42676), (893, 31780), (908, 31255), (940, 30191), (1135, 25004), (1316, 21565), (1330, 21338), (1589, 17860), (1645, 17252), (1786, 15890), (2270, 12502), (2660, 10669), (3178, 8930), (3290, 8626), (3572, 7945), (4313, 6580), (4465, 6356), (4540, 6251)]