129999000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{2549}}^1$

素因数の和:2590

約数の個数: 128

約数和(自身を含む): 429624000

約数和(自身を除く): 299625000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 25, 30, 34, 40, 50, 51, 60, 68, 75, 85, 100, 102, 120, 125, 136, 150, 170, 200, 204, 250, 255, 300, 340, 375, 408, 425, 500, 510, 600, 680, 750, 850, 1000, 1020, 1275, 1500, 1700, 2040, 2125, 2549, 2550, 3000, 3400, 4250, 5098, 5100, 6375, 7647, 8500, 10196, 10200, 12745, 12750, 15294, 17000, 20392, 25490, 25500, 30588, 38235, 43333, 50980, 51000, 61176, 63725, 76470, 86666, 101960, 127450, 129999, 152940, 173332, 191175, 216665, 254900, 259998, 305880, 318625, 346664, 382350, 433330, 509800, 519996, 637250, 649995, 764700, 866660, 955875, 1039992, 1083325, 1274500, 1299990, 1529400, 1733320, 1911750, 2166650, 2549000, 2599980, 3249975, 3823500, 4333300, 5199960, 5416625, 6499950, 7647000, 8666600, 10833250, 12999900, 16249875, 21666500, 25999800, 32499750, 43333000, 64999500, 129999000]

約数ペア:

[(1, 129999000), (2, 64999500), (3, 43333000), (4, 32499750), (5, 25999800), (6, 21666500), (8, 16249875), (10, 12999900), (12, 10833250), (15, 8666600), (17, 7647000), (20, 6499950), (24, 5416625), (25, 5199960), (30, 4333300), (34, 3823500), (40, 3249975), (50, 2599980), (51, 2549000), (60, 2166650), (68, 1911750), (75, 1733320), (85, 1529400), (100, 1299990), (102, 1274500), (120, 1083325), (125, 1039992), (136, 955875), (150, 866660), (170, 764700), (200, 649995), (204, 637250), (250, 519996), (255, 509800), (300, 433330), (340, 382350), (375, 346664), (408, 318625), (425, 305880), (500, 259998), (510, 254900), (600, 216665), (680, 191175), (750, 173332), (850, 152940), (1000, 129999), (1020, 127450), (1275, 101960), (1500, 86666), (1700, 76470), (2040, 63725), (2125, 61176), (2549, 51000), (2550, 50980), (3000, 43333), (3400, 38235), (4250, 30588), (5098, 25500), (5100, 25490), (6375, 20392), (7647, 17000), (8500, 15294), (10196, 12750), (10200, 12745)]