28393785

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 58331520

約数和(自身を除く): 29937735

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 79, 105, 147, 163, 237, 245, 315, 395, 441, 489, 553, 711, 735, 815, 1141, 1185, 1467, 1659, 2205, 2445, 2765, 3423, 3555, 3871, 4977, 5705, 7335, 7987, 8295, 10269, 11613, 12877, 17115, 19355, 23961, 24885, 34839, 38631, 39935, 51345, 58065, 64385, 71883, 90139, 115893, 119805, 174195, 193155, 270417, 359415, 450695, 579465, 630973, 811251, 1352085, 1892919, 3154865, 4056255, 5678757, 9464595, 28393785]

約数ペア:

[(1, 28393785), (3, 9464595), (5, 5678757), (7, 4056255), (9, 3154865), (15, 1892919), (21, 1352085), (35, 811251), (45, 630973), (49, 579465), (63, 450695), (79, 359415), (105, 270417), (147, 193155), (163, 174195), (237, 119805), (245, 115893), (315, 90139), (395, 71883), (441, 64385), (489, 58065), (553, 51345), (711, 39935), (735, 38631), (815, 34839), (1141, 24885), (1185, 23961), (1467, 19355), (1659, 17115), (2205, 12877), (2445, 11613), (2765, 10269), (3423, 8295), (3555, 7987), (3871, 7335), (4977, 5705)]