18898810490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{727717}}^1$

素因数の和:727791

約数の個数: 48

約数和(自身を含む): 40318488072

約数和(自身を除く): 21419677582

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 53, 70, 98, 106, 245, 265, 371, 490, 530, 742, 1855, 2597, 3710, 5194, 12985, 25970, 727717, 1455434, 3638585, 5094019, 7277170, 10188038, 25470095, 35658133, 38569001, 50940190, 71316266, 77138002, 178290665, 192845005, 269983007, 356581330, 385690010, 539966014, 1349915035, 1889881049, 2699830070, 3779762098, 9449405245, 18898810490]

約数ペア:

[(1, 18898810490), (2, 9449405245), (5, 3779762098), (7, 2699830070), (10, 1889881049), (14, 1349915035), (35, 539966014), (49, 385690010), (53, 356581330), (70, 269983007), (98, 192845005), (106, 178290665), (245, 77138002), (265, 71316266), (371, 50940190), (490, 38569001), (530, 35658133), (742, 25470095), (1855, 10188038), (2597, 7277170), (3710, 5094019), (5194, 3638585), (12985, 1455434), (25970, 727717)]