204268905

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{821}}^1$

素因数の和:951

約数の個数: 64

約数和(自身を含む): 386668800

約数和(自身を除く): 182399895

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 97, 135, 171, 285, 291, 485, 513, 821, 855, 873, 1455, 1843, 2463, 2565, 2619, 4105, 4365, 5529, 7389, 9215, 12315, 13095, 15599, 16587, 22167, 27645, 36945, 46797, 49761, 77995, 79637, 82935, 110835, 140391, 233985, 238911, 248805, 398185, 421173, 701955, 716733, 1194555, 1513103, 2105865, 2150199, 3583665, 4539309, 7565515, 10750995, 13617927, 22696545, 40853781, 68089635, 204268905]

約数ペア:

[(1, 204268905), (3, 68089635), (5, 40853781), (9, 22696545), (15, 13617927), (19, 10750995), (27, 7565515), (45, 4539309), (57, 3583665), (95, 2150199), (97, 2105865), (135, 1513103), (171, 1194555), (285, 716733), (291, 701955), (485, 421173), (513, 398185), (821, 248805), (855, 238911), (873, 233985), (1455, 140391), (1843, 110835), (2463, 82935), (2565, 79637), (2619, 77995), (4105, 49761), (4365, 46797), (5529, 36945), (7389, 27645), (9215, 22167), (12315, 16587), (13095, 15599)]