281031590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1699}}^1$

素因数の和:1869

約数の個数: 64

約数和(自身を含む): 616896000

約数和(自身を除く): 335864410

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 139, 170, 238, 278, 595, 695, 973, 1190, 1390, 1699, 1946, 2363, 3398, 4726, 4865, 8495, 9730, 11815, 11893, 16541, 16990, 23630, 23786, 28883, 33082, 57766, 59465, 82705, 118930, 144415, 165410, 202181, 236161, 288830, 404362, 472322, 1010905, 1180805, 1653127, 2021810, 2361610, 3306254, 4014737, 8029474, 8265635, 16531270, 20073685, 28103159, 40147370, 56206318, 140515795, 281031590]

約数ペア:

[(1, 281031590), (2, 140515795), (5, 56206318), (7, 40147370), (10, 28103159), (14, 20073685), (17, 16531270), (34, 8265635), (35, 8029474), (70, 4014737), (85, 3306254), (119, 2361610), (139, 2021810), (170, 1653127), (238, 1180805), (278, 1010905), (595, 472322), (695, 404362), (973, 288830), (1190, 236161), (1390, 202181), (1699, 165410), (1946, 144415), (2363, 118930), (3398, 82705), (4726, 59465), (4865, 57766), (8495, 33082), (9730, 28883), (11815, 23786), (11893, 23630), (16541, 16990)]