51879975

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{743}}^1$

素因数の和:789

約数の個数: 72

約数和(自身を含む): 105171840

約数和(自身を除く): 53291865

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 49, 57, 75, 95, 105, 133, 147, 175, 245, 285, 399, 475, 525, 665, 735, 743, 931, 1225, 1425, 1995, 2229, 2793, 3325, 3675, 3715, 4655, 5201, 9975, 11145, 13965, 14117, 15603, 18575, 23275, 26005, 36407, 42351, 55725, 69825, 70585, 78015, 98819, 109221, 130025, 182035, 211755, 296457, 352925, 390075, 494095, 546105, 691733, 910175, 1058775, 1482285, 2075199, 2470475, 2730525, 3458665, 7411425, 10375995, 17293325, 51879975]

約数ペア:

[(1, 51879975), (3, 17293325), (5, 10375995), (7, 7411425), (15, 3458665), (19, 2730525), (21, 2470475), (25, 2075199), (35, 1482285), (49, 1058775), (57, 910175), (75, 691733), (95, 546105), (105, 494095), (133, 390075), (147, 352925), (175, 296457), (245, 211755), (285, 182035), (399, 130025), (475, 109221), (525, 98819), (665, 78015), (735, 70585), (743, 69825), (931, 55725), (1225, 42351), (1425, 36407), (1995, 26005), (2229, 23275), (2793, 18575), (3325, 15603), (3675, 14117), (3715, 13965), (4655, 11145), (5201, 9975)]