28651770

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:189

約数の個数: 144

約数和(自身を含む): 88831080

約数和(自身を除く): 60179310

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 73, 89, 90, 98, 105, 126, 146, 147, 178, 210, 219, 245, 267, 294, 315, 365, 438, 441, 445, 490, 511, 534, 623, 630, 657, 730, 735, 801, 882, 890, 1022, 1095, 1246, 1314, 1335, 1470, 1533, 1602, 1869, 2190, 2205, 2555, 2670, 3066, 3115, 3285, 3577, 3738, 4005, 4361, 4410, 4599, 5110, 5607, 6230, 6497, 6570, 7154, 7665, 8010, 8722, 9198, 9345, 10731, 11214, 12994, 13083, 15330, 17885, 18690, 19491, 21462, 21805, 22995, 26166, 28035, 32193, 32485, 35770, 38982, 39249, 43610, 45479, 45990, 53655, 56070, 58473, 64386, 64970, 65415, 78498, 90958, 97455, 107310, 116946, 130830, 136437, 160965, 194910, 196245, 227395, 272874, 292365, 318353, 321930, 392490, 409311, 454790, 584730, 636706, 682185, 818622, 955059, 1364370, 1591765, 1910118, 2046555, 2865177, 3183530, 4093110, 4775295, 5730354, 9550590, 14325885, 28651770]

約数ペア:

[(1, 28651770), (2, 14325885), (3, 9550590), (5, 5730354), (6, 4775295), (7, 4093110), (9, 3183530), (10, 2865177), (14, 2046555), (15, 1910118), (18, 1591765), (21, 1364370), (30, 955059), (35, 818622), (42, 682185), (45, 636706), (49, 584730), (63, 454790), (70, 409311), (73, 392490), (89, 321930), (90, 318353), (98, 292365), (105, 272874), (126, 227395), (146, 196245), (147, 194910), (178, 160965), (210, 136437), (219, 130830), (245, 116946), (267, 107310), (294, 97455), (315, 90958), (365, 78498), (438, 65415), (441, 64970), (445, 64386), (490, 58473), (511, 56070), (534, 53655), (623, 45990), (630, 45479), (657, 43610), (730, 39249), (735, 38982), (801, 35770), (882, 32485), (890, 32193), (1022, 28035), (1095, 26166), (1246, 22995), (1314, 21805), (1335, 21462), (1470, 19491), (1533, 18690), (1602, 17885), (1869, 15330), (2190, 13083), (2205, 12994), (2555, 11214), (2670, 10731), (3066, 9345), (3115, 9198), (3285, 8722), (3577, 8010), (3738, 7665), (4005, 7154), (4361, 6570), (4410, 6497), (4599, 6230), (5110, 5607)]