221489775

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{587}}^1$

素因数の和:662

約数の個数: 96

約数和(自身を含む): 449137920

約数和(自身を除く): 227648145

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 43, 45, 65, 75, 117, 129, 135, 195, 215, 225, 325, 351, 387, 559, 585, 587, 645, 675, 975, 1075, 1161, 1677, 1755, 1761, 1935, 2795, 2925, 2935, 3225, 5031, 5283, 5805, 7631, 8385, 8775, 8805, 9675, 13975, 14675, 15093, 15849, 22893, 25155, 25241, 26415, 29025, 38155, 41925, 44025, 68679, 75465, 75723, 79245, 114465, 125775, 126205, 132075, 190775, 206037, 227169, 328133, 343395, 377325, 378615, 396225, 572325, 631025, 681507, 984399, 1030185, 1135845, 1640665, 1716975, 1893075, 2953197, 3407535, 4921995, 5150925, 5679225, 8203325, 8859591, 14765985, 17037675, 24609975, 44297955, 73829925, 221489775]

約数ペア:

[(1, 221489775), (3, 73829925), (5, 44297955), (9, 24609975), (13, 17037675), (15, 14765985), (25, 8859591), (27, 8203325), (39, 5679225), (43, 5150925), (45, 4921995), (65, 3407535), (75, 2953197), (117, 1893075), (129, 1716975), (135, 1640665), (195, 1135845), (215, 1030185), (225, 984399), (325, 681507), (351, 631025), (387, 572325), (559, 396225), (585, 378615), (587, 377325), (645, 343395), (675, 328133), (975, 227169), (1075, 206037), (1161, 190775), (1677, 132075), (1755, 126205), (1761, 125775), (1935, 114465), (2795, 79245), (2925, 75723), (2935, 75465), (3225, 68679), (5031, 44025), (5283, 41925), (5805, 38155), (7631, 29025), (8385, 26415), (8775, 25241), (8805, 25155), (9675, 22893), (13975, 15849), (14675, 15093)]