1270918400

素因数分解:

$2^8\times 5^2\times {\mathrm{349}}^1\times {\mathrm{569}}^1$

素因数の和:944

約数の個数: 108

約数和(自身を含む): 3160279500

約数和(自身を除く): 1889361100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 349, 400, 569, 640, 698, 800, 1138, 1280, 1396, 1600, 1745, 2276, 2792, 2845, 3200, 3490, 4552, 5584, 5690, 6400, 6980, 8725, 9104, 11168, 11380, 13960, 14225, 17450, 18208, 22336, 22760, 27920, 28450, 34900, 36416, 44672, 45520, 55840, 56900, 69800, 72832, 89344, 91040, 111680, 113800, 139600, 145664, 182080, 198581, 223360, 227600, 279200, 364160, 397162, 446720, 455200, 558400, 728320, 794324, 910400, 992905, 1116800, 1588648, 1820800, 1985810, 2233600, 3177296, 3641600, 3971620, 4964525, 6354592, 7943240, 9929050, 12709184, 15886480, 19858100, 25418368, 31772960, 39716200, 50836736, 63545920, 79432400, 127091840, 158864800, 254183680, 317729600, 635459200, 1270918400]

約数ペア:

[(1, 1270918400), (2, 635459200), (4, 317729600), (5, 254183680), (8, 158864800), (10, 127091840), (16, 79432400), (20, 63545920), (25, 50836736), (32, 39716200), (40, 31772960), (50, 25418368), (64, 19858100), (80, 15886480), (100, 12709184), (128, 9929050), (160, 7943240), (200, 6354592), (256, 4964525), (320, 3971620), (349, 3641600), (400, 3177296), (569, 2233600), (640, 1985810), (698, 1820800), (800, 1588648), (1138, 1116800), (1280, 992905), (1396, 910400), (1600, 794324), (1745, 728320), (2276, 558400), (2792, 455200), (2845, 446720), (3200, 397162), (3490, 364160), (4552, 279200), (5584, 227600), (5690, 223360), (6400, 198581), (6980, 182080), (8725, 145664), (9104, 139600), (11168, 113800), (11380, 111680), (13960, 91040), (14225, 89344), (17450, 72832), (18208, 69800), (22336, 56900), (22760, 55840), (27920, 45520), (28450, 44672), (34900, 36416)]