1989005260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{26513}}^1$

素因数の和:26575

約数の個数: 72

約数和(自身を含む): 4739430528

約数和(自身を除く): 2750425268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 484, 605, 620, 682, 1210, 1364, 1705, 2420, 3410, 3751, 6820, 7502, 15004, 18755, 26513, 37510, 53026, 75020, 106052, 132565, 265130, 291643, 530260, 583286, 821903, 1166572, 1458215, 1643806, 2916430, 3208073, 3287612, 4109515, 5832860, 6416146, 8219030, 9040933, 12832292, 16040365, 16438060, 18081866, 32080730, 36163732, 45204665, 64161460, 90409330, 99450263, 180818660, 198900526, 397801052, 497251315, 994502630, 1989005260]

約数ペア:

[(1, 1989005260), (2, 994502630), (4, 497251315), (5, 397801052), (10, 198900526), (11, 180818660), (20, 99450263), (22, 90409330), (31, 64161460), (44, 45204665), (55, 36163732), (62, 32080730), (110, 18081866), (121, 16438060), (124, 16040365), (155, 12832292), (220, 9040933), (242, 8219030), (310, 6416146), (341, 5832860), (484, 4109515), (605, 3287612), (620, 3208073), (682, 2916430), (1210, 1643806), (1364, 1458215), (1705, 1166572), (2420, 821903), (3410, 583286), (3751, 530260), (6820, 291643), (7502, 265130), (15004, 132565), (18755, 106052), (26513, 75020), (37510, 53026)]