17160980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 20578540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 310, 311, 356, 445, 620, 622, 890, 1244, 1555, 1780, 2759, 3110, 5518, 6220, 9641, 11036, 13795, 19282, 27590, 27679, 38564, 48205, 55180, 55358, 96410, 110716, 138395, 192820, 276790, 553580, 858049, 1716098, 3432196, 4290245, 8580490, 17160980]

約数ペア:

[(1, 17160980), (2, 8580490), (4, 4290245), (5, 3432196), (10, 1716098), (20, 858049), (31, 553580), (62, 276790), (89, 192820), (124, 138395), (155, 110716), (178, 96410), (310, 55358), (311, 55180), (356, 48205), (445, 38564), (620, 27679), (622, 27590), (890, 19282), (1244, 13795), (1555, 11036), (1780, 9641), (2759, 6220), (3110, 5518)]