20215701640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1025137}}^1$

素因数の和:1025194

約数の個数: 64

約数和(自身を含む): 49821706800

約数和(自身を除く): 29606005160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 493, 580, 680, 986, 1160, 1972, 2465, 3944, 4930, 9860, 19720, 1025137, 2050274, 4100548, 5125685, 8201096, 10251370, 17427329, 20502740, 29728973, 34854658, 41005480, 59457946, 69709316, 87136645, 118915892, 139418632, 148644865, 174273290, 237831784, 297289730, 348546580, 505392541, 594579460, 697093160, 1010785082, 1189158920, 2021570164, 2526962705, 4043140328, 5053925410, 10107850820, 20215701640]

約数ペア:

[(1, 20215701640), (2, 10107850820), (4, 5053925410), (5, 4043140328), (8, 2526962705), (10, 2021570164), (17, 1189158920), (20, 1010785082), (29, 697093160), (34, 594579460), (40, 505392541), (58, 348546580), (68, 297289730), (85, 237831784), (116, 174273290), (136, 148644865), (145, 139418632), (170, 118915892), (232, 87136645), (290, 69709316), (340, 59457946), (493, 41005480), (580, 34854658), (680, 29728973), (986, 20502740), (1160, 17427329), (1972, 10251370), (2465, 8201096), (3944, 5125685), (4930, 4100548), (9860, 2050274), (19720, 1025137)]