489999900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{125641}}^1$

素因数の和:125671

約数の個数: 72

約数和(自身を含む): 1526801584

約数和(自身を除く): 1036801684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 125641, 251282, 376923, 502564, 628205, 753846, 1256410, 1507692, 1633333, 1884615, 2512820, 3141025, 3266666, 3769230, 4899999, 6282050, 6533332, 7538460, 8166665, 9423075, 9799998, 12564100, 16333330, 18846150, 19599996, 24499995, 32666660, 37692300, 40833325, 48999990, 81666650, 97999980, 122499975, 163333300, 244999950, 489999900]

約数ペア:

[(1, 489999900), (2, 244999950), (3, 163333300), (4, 122499975), (5, 97999980), (6, 81666650), (10, 48999990), (12, 40833325), (13, 37692300), (15, 32666660), (20, 24499995), (25, 19599996), (26, 18846150), (30, 16333330), (39, 12564100), (50, 9799998), (52, 9423075), (60, 8166665), (65, 7538460), (75, 6533332), (78, 6282050), (100, 4899999), (130, 3769230), (150, 3266666), (156, 3141025), (195, 2512820), (260, 1884615), (300, 1633333), (325, 1507692), (390, 1256410), (650, 753846), (780, 628205), (975, 502564), (1300, 376923), (1950, 251282), (3900, 125641)]