28254765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1439}}^1$

素因数の和:1482

約数の個数: 64

約数和(自身を含む): 59719680

約数和(自身を除く): 31464915

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 231, 255, 357, 385, 561, 595, 935, 1155, 1309, 1439, 1785, 2805, 3927, 4317, 6545, 7195, 10073, 15829, 19635, 21585, 24463, 30219, 47487, 50365, 73389, 79145, 110803, 122315, 151095, 171241, 237435, 269093, 332409, 366945, 513723, 554015, 807279, 856205, 1345465, 1662045, 1883651, 2568615, 4036395, 5650953, 9418255, 28254765]

約数ペア:

[(1, 28254765), (3, 9418255), (5, 5650953), (7, 4036395), (11, 2568615), (15, 1883651), (17, 1662045), (21, 1345465), (33, 856205), (35, 807279), (51, 554015), (55, 513723), (77, 366945), (85, 332409), (105, 269093), (119, 237435), (165, 171241), (187, 151095), (231, 122315), (255, 110803), (357, 79145), (385, 73389), (561, 50365), (595, 47487), (935, 30219), (1155, 24463), (1309, 21585), (1439, 19635), (1785, 15829), (2805, 10073), (3927, 7195), (4317, 6545)]