81305000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:157

約数の個数: 160

約数和(自身を含む): 229426560

約数和(自身を除く): 148121560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 92, 100, 101, 115, 125, 140, 161, 175, 184, 200, 202, 230, 250, 280, 322, 350, 404, 460, 500, 505, 575, 625, 644, 700, 707, 805, 808, 875, 920, 1000, 1010, 1150, 1250, 1288, 1400, 1414, 1610, 1750, 2020, 2300, 2323, 2500, 2525, 2828, 2875, 3220, 3500, 3535, 4025, 4040, 4375, 4600, 4646, 5000, 5050, 5656, 5750, 6440, 7000, 7070, 8050, 8750, 9292, 10100, 11500, 11615, 12625, 14140, 14375, 16100, 16261, 17500, 17675, 18584, 20125, 20200, 23000, 23230, 25250, 28280, 28750, 32200, 32522, 35000, 35350, 40250, 46460, 50500, 57500, 58075, 63125, 65044, 70700, 80500, 81305, 88375, 92920, 100625, 101000, 115000, 116150, 126250, 130088, 141400, 161000, 162610, 176750, 201250, 232300, 252500, 290375, 325220, 353500, 402500, 406525, 441875, 464600, 505000, 580750, 650440, 707000, 805000, 813050, 883750, 1161500, 1451875, 1626100, 1767500, 2032625, 2323000, 2903750, 3252200, 3535000, 4065250, 5807500, 8130500, 10163125, 11615000, 16261000, 20326250, 40652500, 81305000]

約数ペア:

[(1, 81305000), (2, 40652500), (4, 20326250), (5, 16261000), (7, 11615000), (8, 10163125), (10, 8130500), (14, 5807500), (20, 4065250), (23, 3535000), (25, 3252200), (28, 2903750), (35, 2323000), (40, 2032625), (46, 1767500), (50, 1626100), (56, 1451875), (70, 1161500), (92, 883750), (100, 813050), (101, 805000), (115, 707000), (125, 650440), (140, 580750), (161, 505000), (175, 464600), (184, 441875), (200, 406525), (202, 402500), (230, 353500), (250, 325220), (280, 290375), (322, 252500), (350, 232300), (404, 201250), (460, 176750), (500, 162610), (505, 161000), (575, 141400), (625, 130088), (644, 126250), (700, 116150), (707, 115000), (805, 101000), (808, 100625), (875, 92920), (920, 88375), (1000, 81305), (1010, 80500), (1150, 70700), (1250, 65044), (1288, 63125), (1400, 58075), (1414, 57500), (1610, 50500), (1750, 46460), (2020, 40250), (2300, 35350), (2323, 35000), (2500, 32522), (2525, 32200), (2828, 28750), (2875, 28280), (3220, 25250), (3500, 23230), (3535, 23000), (4025, 20200), (4040, 20125), (4375, 18584), (4600, 17675), (4646, 17500), (5000, 16261), (5050, 16100), (5656, 14375), (5750, 14140), (6440, 12625), (7000, 11615), (7070, 11500), (8050, 10100), (8750, 9292)]