278315180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4231}}^1$

素因数の和:4287

約数の個数: 96

約数和(自身を含む): 716663808

約数和(自身を除く): 438348628

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 23, 26, 44, 46, 52, 55, 65, 92, 110, 115, 130, 143, 220, 230, 253, 260, 286, 299, 460, 506, 572, 598, 715, 1012, 1196, 1265, 1430, 1495, 2530, 2860, 2990, 3289, 4231, 5060, 5980, 6578, 8462, 13156, 16445, 16924, 21155, 32890, 42310, 46541, 55003, 65780, 84620, 93082, 97313, 110006, 186164, 194626, 220012, 232705, 275015, 389252, 465410, 486565, 550030, 605033, 930820, 973130, 1070443, 1100060, 1210066, 1265069, 1946260, 2140886, 2420132, 2530138, 3025165, 4281772, 5060276, 5352215, 6050330, 6325345, 10704430, 12100660, 12650690, 13915759, 21408860, 25301380, 27831518, 55663036, 69578795, 139157590, 278315180]

約数ペア:

[(1, 278315180), (2, 139157590), (4, 69578795), (5, 55663036), (10, 27831518), (11, 25301380), (13, 21408860), (20, 13915759), (22, 12650690), (23, 12100660), (26, 10704430), (44, 6325345), (46, 6050330), (52, 5352215), (55, 5060276), (65, 4281772), (92, 3025165), (110, 2530138), (115, 2420132), (130, 2140886), (143, 1946260), (220, 1265069), (230, 1210066), (253, 1100060), (260, 1070443), (286, 973130), (299, 930820), (460, 605033), (506, 550030), (572, 486565), (598, 465410), (715, 389252), (1012, 275015), (1196, 232705), (1265, 220012), (1430, 194626), (1495, 186164), (2530, 110006), (2860, 97313), (2990, 93082), (3289, 84620), (4231, 65780), (5060, 55003), (5980, 46541), (6578, 42310), (8462, 32890), (13156, 21155), (16445, 16924)]