81454750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 166997376

約数和(自身を除く): 85542626

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 71, 125, 130, 142, 250, 325, 353, 355, 650, 706, 710, 923, 1625, 1765, 1775, 1846, 3250, 3530, 3550, 4589, 4615, 8825, 8875, 9178, 9230, 17650, 17750, 22945, 23075, 25063, 44125, 45890, 46150, 50126, 88250, 114725, 115375, 125315, 229450, 230750, 250630, 325819, 573625, 626575, 651638, 1147250, 1253150, 1629095, 3132875, 3258190, 6265750, 8145475, 16290950, 40727375, 81454750]

約数ペア:

[(1, 81454750), (2, 40727375), (5, 16290950), (10, 8145475), (13, 6265750), (25, 3258190), (26, 3132875), (50, 1629095), (65, 1253150), (71, 1147250), (125, 651638), (130, 626575), (142, 573625), (250, 325819), (325, 250630), (353, 230750), (355, 229450), (650, 125315), (706, 115375), (710, 114725), (923, 88250), (1625, 50126), (1765, 46150), (1775, 45890), (1846, 44125), (3250, 25063), (3530, 23075), (3550, 22945), (4589, 17750), (4615, 17650), (8825, 9230), (8875, 9178)]