220707025

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1489}}^1$

素因数の和:1535

約数の個数: 54

約数和(自身を含む): 350166390

約数和(自身を除く): 129459365

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 121, 175, 245, 275, 385, 539, 605, 847, 1225, 1489, 1925, 2695, 3025, 4235, 5929, 7445, 10423, 13475, 16379, 21175, 29645, 37225, 52115, 72961, 81895, 114653, 148225, 180169, 260575, 364805, 409475, 573265, 802571, 900845, 1261183, 1824025, 2866325, 4012855, 4504225, 6305915, 8828281, 20064275, 31529575, 44141405, 220707025]

約数ペア:

[(1, 220707025), (5, 44141405), (7, 31529575), (11, 20064275), (25, 8828281), (35, 6305915), (49, 4504225), (55, 4012855), (77, 2866325), (121, 1824025), (175, 1261183), (245, 900845), (275, 802571), (385, 573265), (539, 409475), (605, 364805), (847, 260575), (1225, 180169), (1489, 148225), (1925, 114653), (2695, 81895), (3025, 72961), (4235, 52115), (5929, 37225), (7445, 29645), (10423, 21175), (13475, 16379)]