3999000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:98

約数の個数: 128

約数和(自身を含む): 13178880

約数和(自身を除く): 9179880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 31, 40, 43, 50, 60, 62, 75, 86, 93, 100, 120, 124, 125, 129, 150, 155, 172, 186, 200, 215, 248, 250, 258, 300, 310, 344, 372, 375, 430, 465, 500, 516, 600, 620, 645, 744, 750, 775, 860, 930, 1000, 1032, 1075, 1240, 1290, 1333, 1500, 1550, 1720, 1860, 2150, 2325, 2580, 2666, 3000, 3100, 3225, 3720, 3875, 3999, 4300, 4650, 5160, 5332, 5375, 6200, 6450, 6665, 7750, 7998, 8600, 9300, 10664, 10750, 11625, 12900, 13330, 15500, 15996, 16125, 18600, 19995, 21500, 23250, 25800, 26660, 31000, 31992, 32250, 33325, 39990, 43000, 46500, 53320, 64500, 66650, 79980, 93000, 99975, 129000, 133300, 159960, 166625, 199950, 266600, 333250, 399900, 499875, 666500, 799800, 999750, 1333000, 1999500, 3999000]

約数ペア:

[(1, 3999000), (2, 1999500), (3, 1333000), (4, 999750), (5, 799800), (6, 666500), (8, 499875), (10, 399900), (12, 333250), (15, 266600), (20, 199950), (24, 166625), (25, 159960), (30, 133300), (31, 129000), (40, 99975), (43, 93000), (50, 79980), (60, 66650), (62, 64500), (75, 53320), (86, 46500), (93, 43000), (100, 39990), (120, 33325), (124, 32250), (125, 31992), (129, 31000), (150, 26660), (155, 25800), (172, 23250), (186, 21500), (200, 19995), (215, 18600), (248, 16125), (250, 15996), (258, 15500), (300, 13330), (310, 12900), (344, 11625), (372, 10750), (375, 10664), (430, 9300), (465, 8600), (500, 7998), (516, 7750), (600, 6665), (620, 6450), (645, 6200), (744, 5375), (750, 5332), (775, 5160), (860, 4650), (930, 4300), (1000, 3999), (1032, 3875), (1075, 3720), (1240, 3225), (1290, 3100), (1333, 3000), (1500, 2666), (1550, 2580), (1720, 2325), (1860, 2150)]