1251779840

素因数分解:

$2^8\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6229}}^1$

素因数の和:6407

約数の個数: 72

約数和(自身を含む): 3017986440

約数和(自身を除く): 1766206600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 628, 640, 785, 1256, 1280, 1570, 2512, 3140, 5024, 6229, 6280, 10048, 12458, 12560, 20096, 24916, 25120, 31145, 40192, 49832, 50240, 62290, 99664, 100480, 124580, 199328, 200960, 249160, 398656, 498320, 797312, 977953, 996640, 1594624, 1955906, 1993280, 3911812, 3986560, 4889765, 7823624, 7973120, 9779530, 15647248, 19559060, 31294496, 39118120, 62588992, 78236240, 125177984, 156472480, 250355968, 312944960, 625889920, 1251779840]

約数ペア:

[(1, 1251779840), (2, 625889920), (4, 312944960), (5, 250355968), (8, 156472480), (10, 125177984), (16, 78236240), (20, 62588992), (32, 39118120), (40, 31294496), (64, 19559060), (80, 15647248), (128, 9779530), (157, 7973120), (160, 7823624), (256, 4889765), (314, 3986560), (320, 3911812), (628, 1993280), (640, 1955906), (785, 1594624), (1256, 996640), (1280, 977953), (1570, 797312), (2512, 498320), (3140, 398656), (5024, 249160), (6229, 200960), (6280, 199328), (10048, 124580), (12458, 100480), (12560, 99664), (20096, 62290), (24916, 50240), (25120, 49832), (31145, 40192)]