21749000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:280

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 41150200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 91, 100, 104, 125, 130, 140, 175, 182, 200, 239, 250, 260, 280, 325, 350, 364, 455, 478, 500, 520, 650, 700, 728, 875, 910, 956, 1000, 1195, 1300, 1400, 1625, 1673, 1750, 1820, 1912, 2275, 2390, 2600, 3107, 3250, 3346, 3500, 3640, 4550, 4780, 5975, 6214, 6500, 6692, 7000, 8365, 9100, 9560, 11375, 11950, 12428, 13000, 13384, 15535, 16730, 18200, 21749, 22750, 23900, 24856, 29875, 31070, 33460, 41825, 43498, 45500, 47800, 59750, 62140, 66920, 77675, 83650, 86996, 91000, 108745, 119500, 124280, 155350, 167300, 173992, 209125, 217490, 239000, 310700, 334600, 388375, 418250, 434980, 543725, 621400, 776750, 836500, 869960, 1087450, 1553500, 1673000, 2174900, 2718625, 3107000, 4349800, 5437250, 10874500, 21749000]

約数ペア:

[(1, 21749000), (2, 10874500), (4, 5437250), (5, 4349800), (7, 3107000), (8, 2718625), (10, 2174900), (13, 1673000), (14, 1553500), (20, 1087450), (25, 869960), (26, 836500), (28, 776750), (35, 621400), (40, 543725), (50, 434980), (52, 418250), (56, 388375), (65, 334600), (70, 310700), (91, 239000), (100, 217490), (104, 209125), (125, 173992), (130, 167300), (140, 155350), (175, 124280), (182, 119500), (200, 108745), (239, 91000), (250, 86996), (260, 83650), (280, 77675), (325, 66920), (350, 62140), (364, 59750), (455, 47800), (478, 45500), (500, 43498), (520, 41825), (650, 33460), (700, 31070), (728, 29875), (875, 24856), (910, 23900), (956, 22750), (1000, 21749), (1195, 18200), (1300, 16730), (1400, 15535), (1625, 13384), (1673, 13000), (1750, 12428), (1820, 11950), (1912, 11375), (2275, 9560), (2390, 9100), (2600, 8365), (3107, 7000), (3250, 6692), (3346, 6500), (3500, 6214), (3640, 5975), (4550, 4780)]