28821000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:776

約数の個数: 128

約数和(自身を含む): 96969600

約数和(自身を除く): 68148600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 125, 130, 150, 156, 195, 200, 250, 260, 300, 312, 325, 375, 390, 500, 520, 600, 650, 739, 750, 780, 975, 1000, 1300, 1478, 1500, 1560, 1625, 1950, 2217, 2600, 2956, 3000, 3250, 3695, 3900, 4434, 4875, 5912, 6500, 7390, 7800, 8868, 9607, 9750, 11085, 13000, 14780, 17736, 18475, 19214, 19500, 22170, 28821, 29560, 36950, 38428, 39000, 44340, 48035, 55425, 57642, 73900, 76856, 88680, 92375, 96070, 110850, 115284, 144105, 147800, 184750, 192140, 221700, 230568, 240175, 277125, 288210, 369500, 384280, 443400, 480350, 554250, 576420, 720525, 739000, 960700, 1108500, 1152840, 1200875, 1441050, 1921400, 2217000, 2401750, 2882100, 3602625, 4803500, 5764200, 7205250, 9607000, 14410500, 28821000]

約数ペア:

[(1, 28821000), (2, 14410500), (3, 9607000), (4, 7205250), (5, 5764200), (6, 4803500), (8, 3602625), (10, 2882100), (12, 2401750), (13, 2217000), (15, 1921400), (20, 1441050), (24, 1200875), (25, 1152840), (26, 1108500), (30, 960700), (39, 739000), (40, 720525), (50, 576420), (52, 554250), (60, 480350), (65, 443400), (75, 384280), (78, 369500), (100, 288210), (104, 277125), (120, 240175), (125, 230568), (130, 221700), (150, 192140), (156, 184750), (195, 147800), (200, 144105), (250, 115284), (260, 110850), (300, 96070), (312, 92375), (325, 88680), (375, 76856), (390, 73900), (500, 57642), (520, 55425), (600, 48035), (650, 44340), (739, 39000), (750, 38428), (780, 36950), (975, 29560), (1000, 28821), (1300, 22170), (1478, 19500), (1500, 19214), (1560, 18475), (1625, 17736), (1950, 14780), (2217, 13000), (2600, 11085), (2956, 9750), (3000, 9607), (3250, 8868), (3695, 7800), (3900, 7390), (4434, 6500), (4875, 5912)]