221342325

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 393037344

約数和(自身を除く): 171695019

約数列:

[1, 3, 5, 15, 25, 31, 37, 75, 83, 93, 111, 155, 185, 249, 415, 465, 555, 775, 925, 961, 1147, 1245, 2075, 2325, 2573, 2775, 2883, 3071, 3441, 4805, 5735, 6225, 7719, 9213, 12865, 14415, 15355, 17205, 24025, 28675, 35557, 38595, 46065, 64325, 72075, 76775, 79763, 86025, 95201, 106671, 177785, 192975, 230325, 239289, 285603, 398815, 476005, 533355, 888925, 1196445, 1428015, 1994075, 2380025, 2666775, 2951231, 5982225, 7140075, 8853693, 14756155, 44268465, 73780775, 221342325]

約数ペア:

[(1, 221342325), (3, 73780775), (5, 44268465), (15, 14756155), (25, 8853693), (31, 7140075), (37, 5982225), (75, 2951231), (83, 2666775), (93, 2380025), (111, 1994075), (155, 1428015), (185, 1196445), (249, 888925), (415, 533355), (465, 476005), (555, 398815), (775, 285603), (925, 239289), (961, 230325), (1147, 192975), (1245, 177785), (2075, 106671), (2325, 95201), (2573, 86025), (2775, 79763), (2883, 76775), (3071, 72075), (3441, 64325), (4805, 46065), (5735, 38595), (6225, 35557), (7719, 28675), (9213, 24025), (12865, 17205), (14415, 15355)]