51416925

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{823}}^1$

素因数の和:867

約数の個数: 72

約数和(自身を含む): 104832576

約数和(自身を除く): 53415651

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 49, 51, 75, 85, 105, 119, 147, 175, 245, 255, 357, 425, 525, 595, 735, 823, 833, 1225, 1275, 1785, 2469, 2499, 2975, 3675, 4115, 4165, 5761, 8925, 12345, 12495, 13991, 17283, 20575, 20825, 28805, 40327, 41973, 61725, 62475, 69955, 86415, 97937, 120981, 144025, 201635, 209865, 293811, 349775, 432075, 489685, 604905, 685559, 1008175, 1049325, 1469055, 2056677, 2448425, 3024525, 3427795, 7345275, 10283385, 17138975, 51416925]

約数ペア:

[(1, 51416925), (3, 17138975), (5, 10283385), (7, 7345275), (15, 3427795), (17, 3024525), (21, 2448425), (25, 2056677), (35, 1469055), (49, 1049325), (51, 1008175), (75, 685559), (85, 604905), (105, 489685), (119, 432075), (147, 349775), (175, 293811), (245, 209865), (255, 201635), (357, 144025), (425, 120981), (525, 97937), (595, 86415), (735, 69955), (823, 62475), (833, 61725), (1225, 41973), (1275, 40327), (1785, 28805), (2469, 20825), (2499, 20575), (2975, 17283), (3675, 13991), (4115, 12495), (4165, 12345), (5761, 8925)]