20180494045

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{190391}}^1$

素因数の和:190485

約数の個数: 32

約数和(自身を含む): 27142283520

約数和(自身を除く): 6961789475

約数列:

[1, 5, 17, 29, 43, 85, 145, 215, 493, 731, 1247, 2465, 3655, 6235, 21199, 105995, 190391, 951955, 3236647, 5521339, 8186813, 16183235, 27606695, 40934065, 93862763, 139175821, 237417577, 469313815, 695879105, 1187087885, 4036098809, 20180494045]

約数ペア:

[(1, 20180494045), (5, 4036098809), (17, 1187087885), (29, 695879105), (43, 469313815), (85, 237417577), (145, 139175821), (215, 93862763), (493, 40934065), (731, 27606695), (1247, 16183235), (2465, 8186813), (3655, 5521339), (6235, 3236647), (21199, 951955), (105995, 190391)]