20061825

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:183

約数の個数: 72

約数和(自身を含む): 39693888

約数和(自身を除く): 19632063

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 53, 75, 103, 105, 147, 159, 175, 245, 265, 309, 371, 515, 525, 721, 735, 795, 1113, 1225, 1325, 1545, 1855, 2163, 2575, 2597, 3605, 3675, 3975, 5047, 5459, 5565, 7725, 7791, 9275, 10815, 12985, 15141, 16377, 18025, 25235, 27295, 27825, 38213, 38955, 54075, 64925, 75705, 81885, 114639, 126175, 136475, 191065, 194775, 267491, 378525, 409425, 573195, 802473, 955325, 1337455, 2865975, 4012365, 6687275, 20061825]

約数ペア:

[(1, 20061825), (3, 6687275), (5, 4012365), (7, 2865975), (15, 1337455), (21, 955325), (25, 802473), (35, 573195), (49, 409425), (53, 378525), (75, 267491), (103, 194775), (105, 191065), (147, 136475), (159, 126175), (175, 114639), (245, 81885), (265, 75705), (309, 64925), (371, 54075), (515, 38955), (525, 38213), (721, 27825), (735, 27295), (795, 25235), (1113, 18025), (1225, 16377), (1325, 15141), (1545, 12985), (1855, 10815), (2163, 9275), (2575, 7791), (2597, 7725), (3605, 5565), (3675, 5459), (3975, 5047)]