389636975

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:649

約数の個数: 72

約数和(自身を含む): 620429040

約数和(自身を除く): 230792065

約数列:

[1, 5, 7, 13, 25, 35, 43, 49, 65, 91, 175, 215, 245, 301, 325, 455, 559, 569, 637, 1075, 1225, 1505, 2107, 2275, 2795, 2845, 3185, 3913, 3983, 7397, 7525, 10535, 13975, 14225, 15925, 19565, 19915, 24467, 27391, 27881, 36985, 51779, 52675, 97825, 99575, 122335, 136955, 139405, 171269, 184925, 258895, 318071, 362453, 611675, 684775, 697025, 856345, 1198883, 1294475, 1590355, 1812265, 2226497, 4281725, 5994415, 7951775, 9061325, 11132485, 15585479, 29972075, 55662425, 77927395, 389636975]

約数ペア:

[(1, 389636975), (5, 77927395), (7, 55662425), (13, 29972075), (25, 15585479), (35, 11132485), (43, 9061325), (49, 7951775), (65, 5994415), (91, 4281725), (175, 2226497), (215, 1812265), (245, 1590355), (301, 1294475), (325, 1198883), (455, 856345), (559, 697025), (569, 684775), (637, 611675), (1075, 362453), (1225, 318071), (1505, 258895), (2107, 184925), (2275, 171269), (2795, 139405), (2845, 136955), (3185, 122335), (3913, 99575), (3983, 97825), (7397, 52675), (7525, 51779), (10535, 36985), (13975, 27881), (14225, 27391), (15925, 24467), (19565, 19915)]