28130355

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1041

約数の個数: 64

約数和(自身を含む): 57484800

約数和(自身を除く): 29354445

約数列:

[1, 3, 5, 9, 11, 15, 19, 27, 33, 45, 55, 57, 95, 99, 135, 165, 171, 209, 285, 297, 495, 513, 627, 855, 997, 1045, 1485, 1881, 2565, 2991, 3135, 4985, 5643, 8973, 9405, 10967, 14955, 18943, 26919, 28215, 32901, 44865, 54835, 56829, 94715, 98703, 134595, 164505, 170487, 208373, 284145, 296109, 493515, 511461, 625119, 852435, 1041865, 1480545, 1875357, 2557305, 3125595, 5626071, 9376785, 28130355]

約数ペア:

[(1, 28130355), (3, 9376785), (5, 5626071), (9, 3125595), (11, 2557305), (15, 1875357), (19, 1480545), (27, 1041865), (33, 852435), (45, 625119), (55, 511461), (57, 493515), (95, 296109), (99, 284145), (135, 208373), (165, 170487), (171, 164505), (209, 134595), (285, 98703), (297, 94715), (495, 56829), (513, 54835), (627, 44865), (855, 32901), (997, 28215), (1045, 26919), (1485, 18943), (1881, 14955), (2565, 10967), (2991, 9405), (3135, 8973), (4985, 5643)]