248755000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 160

約数和(自身を含む): 649479600

約数和(自身を除く): 400724600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 43, 50, 52, 65, 86, 89, 100, 104, 125, 130, 172, 178, 200, 215, 250, 260, 325, 344, 356, 430, 445, 500, 520, 559, 625, 650, 712, 860, 890, 1000, 1075, 1118, 1157, 1250, 1300, 1625, 1720, 1780, 2150, 2225, 2236, 2314, 2500, 2600, 2795, 3250, 3560, 3827, 4300, 4450, 4472, 4628, 5000, 5375, 5590, 5785, 6500, 7654, 8125, 8600, 8900, 9256, 10750, 11125, 11180, 11570, 13000, 13975, 15308, 16250, 17800, 19135, 21500, 22250, 22360, 23140, 26875, 27950, 28925, 30616, 32500, 38270, 43000, 44500, 46280, 49751, 53750, 55625, 55900, 57850, 65000, 69875, 76540, 89000, 95675, 99502, 107500, 111250, 111800, 115700, 139750, 144625, 153080, 191350, 199004, 215000, 222500, 231400, 248755, 279500, 289250, 349375, 382700, 398008, 445000, 478375, 497510, 559000, 578500, 698750, 723125, 765400, 956750, 995020, 1157000, 1243775, 1397500, 1446250, 1913500, 1990040, 2391875, 2487550, 2795000, 2892500, 3827000, 4783750, 4975100, 5785000, 6218875, 9567500, 9950200, 12437750, 19135000, 24875500, 31094375, 49751000, 62188750, 124377500, 248755000]

約数ペア:

[(1, 248755000), (2, 124377500), (4, 62188750), (5, 49751000), (8, 31094375), (10, 24875500), (13, 19135000), (20, 12437750), (25, 9950200), (26, 9567500), (40, 6218875), (43, 5785000), (50, 4975100), (52, 4783750), (65, 3827000), (86, 2892500), (89, 2795000), (100, 2487550), (104, 2391875), (125, 1990040), (130, 1913500), (172, 1446250), (178, 1397500), (200, 1243775), (215, 1157000), (250, 995020), (260, 956750), (325, 765400), (344, 723125), (356, 698750), (430, 578500), (445, 559000), (500, 497510), (520, 478375), (559, 445000), (625, 398008), (650, 382700), (712, 349375), (860, 289250), (890, 279500), (1000, 248755), (1075, 231400), (1118, 222500), (1157, 215000), (1250, 199004), (1300, 191350), (1625, 153080), (1720, 144625), (1780, 139750), (2150, 115700), (2225, 111800), (2236, 111250), (2314, 107500), (2500, 99502), (2600, 95675), (2795, 89000), (3250, 76540), (3560, 69875), (3827, 65000), (4300, 57850), (4450, 55900), (4472, 55625), (4628, 53750), (5000, 49751), (5375, 46280), (5590, 44500), (5785, 43000), (6500, 38270), (7654, 32500), (8125, 30616), (8600, 28925), (8900, 27950), (9256, 26875), (10750, 23140), (11125, 22360), (11180, 22250), (11570, 21500), (13000, 19135), (13975, 17800), (15308, 16250)]