28710500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:670

約数の個数: 96

約数和(自身を含む): 77296128

約数和(自身を除く): 48585628

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 125, 130, 140, 175, 182, 250, 260, 325, 350, 364, 455, 500, 631, 650, 700, 875, 910, 1262, 1300, 1625, 1750, 1820, 2275, 2524, 3155, 3250, 3500, 4417, 4550, 6310, 6500, 8203, 8834, 9100, 11375, 12620, 15775, 16406, 17668, 22085, 22750, 31550, 32812, 41015, 44170, 45500, 57421, 63100, 78875, 82030, 88340, 110425, 114842, 157750, 164060, 205075, 220850, 229684, 287105, 315500, 410150, 441700, 552125, 574210, 820300, 1025375, 1104250, 1148420, 1435525, 2050750, 2208500, 2871050, 4101500, 5742100, 7177625, 14355250, 28710500]

約数ペア:

[(1, 28710500), (2, 14355250), (4, 7177625), (5, 5742100), (7, 4101500), (10, 2871050), (13, 2208500), (14, 2050750), (20, 1435525), (25, 1148420), (26, 1104250), (28, 1025375), (35, 820300), (50, 574210), (52, 552125), (65, 441700), (70, 410150), (91, 315500), (100, 287105), (125, 229684), (130, 220850), (140, 205075), (175, 164060), (182, 157750), (250, 114842), (260, 110425), (325, 88340), (350, 82030), (364, 78875), (455, 63100), (500, 57421), (631, 45500), (650, 44170), (700, 41015), (875, 32812), (910, 31550), (1262, 22750), (1300, 22085), (1625, 17668), (1750, 16406), (1820, 15775), (2275, 12620), (2524, 11375), (3155, 9100), (3250, 8834), (3500, 8203), (4417, 6500), (4550, 6310)]