438815000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 160

約数和(自身を含む): 1140197520

約数和(自身を除く): 701382520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 43, 50, 52, 65, 86, 100, 104, 125, 130, 157, 172, 200, 215, 250, 260, 314, 325, 344, 430, 500, 520, 559, 625, 628, 650, 785, 860, 1000, 1075, 1118, 1250, 1256, 1300, 1570, 1625, 1720, 2041, 2150, 2236, 2500, 2600, 2795, 3140, 3250, 3925, 4082, 4300, 4472, 5000, 5375, 5590, 6280, 6500, 6751, 7850, 8125, 8164, 8600, 10205, 10750, 11180, 13000, 13502, 13975, 15700, 16250, 16328, 19625, 20410, 21500, 22360, 26875, 27004, 27950, 31400, 32500, 33755, 39250, 40820, 43000, 51025, 53750, 54008, 55900, 65000, 67510, 69875, 78500, 81640, 87763, 98125, 102050, 107500, 111800, 135020, 139750, 157000, 168775, 175526, 196250, 204100, 215000, 255125, 270040, 279500, 337550, 349375, 351052, 392500, 408200, 438815, 510250, 559000, 675100, 698750, 702104, 785000, 843875, 877630, 1020500, 1275625, 1350200, 1397500, 1687750, 1755260, 2041000, 2194075, 2551250, 2795000, 3375500, 3510520, 4219375, 4388150, 5102500, 6751000, 8438750, 8776300, 10205000, 10970375, 16877500, 17552600, 21940750, 33755000, 43881500, 54851875, 87763000, 109703750, 219407500, 438815000]

約数ペア:

[(1, 438815000), (2, 219407500), (4, 109703750), (5, 87763000), (8, 54851875), (10, 43881500), (13, 33755000), (20, 21940750), (25, 17552600), (26, 16877500), (40, 10970375), (43, 10205000), (50, 8776300), (52, 8438750), (65, 6751000), (86, 5102500), (100, 4388150), (104, 4219375), (125, 3510520), (130, 3375500), (157, 2795000), (172, 2551250), (200, 2194075), (215, 2041000), (250, 1755260), (260, 1687750), (314, 1397500), (325, 1350200), (344, 1275625), (430, 1020500), (500, 877630), (520, 843875), (559, 785000), (625, 702104), (628, 698750), (650, 675100), (785, 559000), (860, 510250), (1000, 438815), (1075, 408200), (1118, 392500), (1250, 351052), (1256, 349375), (1300, 337550), (1570, 279500), (1625, 270040), (1720, 255125), (2041, 215000), (2150, 204100), (2236, 196250), (2500, 175526), (2600, 168775), (2795, 157000), (3140, 139750), (3250, 135020), (3925, 111800), (4082, 107500), (4300, 102050), (4472, 98125), (5000, 87763), (5375, 81640), (5590, 78500), (6280, 69875), (6500, 67510), (6751, 65000), (7850, 55900), (8125, 54008), (8164, 53750), (8600, 51025), (10205, 43000), (10750, 40820), (11180, 39250), (13000, 33755), (13502, 32500), (13975, 31400), (15700, 27950), (16250, 27004), (16328, 26875), (19625, 22360), (20410, 21500)]