28905940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 74317824

約数和(自身を除く): 45411884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 47, 70, 92, 94, 115, 140, 161, 188, 191, 230, 235, 322, 329, 382, 460, 470, 644, 658, 764, 805, 940, 955, 1081, 1316, 1337, 1610, 1645, 1910, 2162, 2674, 3220, 3290, 3820, 4324, 4393, 5348, 5405, 6580, 6685, 7567, 8786, 8977, 10810, 13370, 15134, 17572, 17954, 21620, 21965, 26740, 30268, 30751, 35908, 37835, 43930, 44885, 61502, 62839, 75670, 87860, 89770, 123004, 125678, 151340, 153755, 179540, 206471, 251356, 307510, 314195, 412942, 615020, 628390, 825884, 1032355, 1256780, 1445297, 2064710, 2890594, 4129420, 5781188, 7226485, 14452970, 28905940]

約数ペア:

[(1, 28905940), (2, 14452970), (4, 7226485), (5, 5781188), (7, 4129420), (10, 2890594), (14, 2064710), (20, 1445297), (23, 1256780), (28, 1032355), (35, 825884), (46, 628390), (47, 615020), (70, 412942), (92, 314195), (94, 307510), (115, 251356), (140, 206471), (161, 179540), (188, 153755), (191, 151340), (230, 125678), (235, 123004), (322, 89770), (329, 87860), (382, 75670), (460, 62839), (470, 61502), (644, 44885), (658, 43930), (764, 37835), (805, 35908), (940, 30751), (955, 30268), (1081, 26740), (1316, 21965), (1337, 21620), (1610, 17954), (1645, 17572), (1910, 15134), (2162, 13370), (2674, 10810), (3220, 8977), (3290, 8786), (3820, 7567), (4324, 6685), (4393, 6580), (5348, 5405)]