51210225

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^3\times {\mathrm{19}}^1$

素因数の和:74

約数の個数: 120

約数和(自身を含む): 109829280

約数和(自身を除く): 58619055

約数列:

[1, 3, 5, 9, 11, 15, 19, 25, 27, 33, 45, 55, 57, 75, 81, 95, 99, 121, 135, 165, 171, 209, 225, 275, 285, 297, 363, 405, 475, 495, 513, 605, 627, 675, 825, 855, 891, 1045, 1089, 1331, 1425, 1485, 1539, 1815, 1881, 2025, 2299, 2475, 2565, 3025, 3135, 3267, 3993, 4275, 4455, 5225, 5445, 5643, 6655, 6897, 7425, 7695, 9075, 9405, 9801, 11495, 11979, 12825, 15675, 16335, 16929, 19965, 20691, 22275, 25289, 27225, 28215, 33275, 34485, 35937, 38475, 47025, 49005, 57475, 59895, 62073, 75867, 81675, 84645, 99825, 103455, 107811, 126445, 141075, 172425, 179685, 186219, 227601, 245025, 299475, 310365, 379335, 423225, 517275, 539055, 632225, 682803, 898425, 931095, 1138005, 1551825, 1896675, 2048409, 2695275, 3414015, 4655475, 5690025, 10242045, 17070075, 51210225]

約数ペア:

[(1, 51210225), (3, 17070075), (5, 10242045), (9, 5690025), (11, 4655475), (15, 3414015), (19, 2695275), (25, 2048409), (27, 1896675), (33, 1551825), (45, 1138005), (55, 931095), (57, 898425), (75, 682803), (81, 632225), (95, 539055), (99, 517275), (121, 423225), (135, 379335), (165, 310365), (171, 299475), (209, 245025), (225, 227601), (275, 186219), (285, 179685), (297, 172425), (363, 141075), (405, 126445), (475, 107811), (495, 103455), (513, 99825), (605, 84645), (627, 81675), (675, 75867), (825, 62073), (855, 59895), (891, 57475), (1045, 49005), (1089, 47025), (1331, 38475), (1425, 35937), (1485, 34485), (1539, 33275), (1815, 28215), (1881, 27225), (2025, 25289), (2299, 22275), (2475, 20691), (2565, 19965), (3025, 16929), (3135, 16335), (3267, 15675), (3993, 12825), (4275, 11979), (4455, 11495), (5225, 9801), (5445, 9405), (5643, 9075), (6655, 7695), (6897, 7425)]