557366980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{2311}}^1$

素因数の和:2740

約数の個数: 48

約数和(自身を含む): 1211857920

約数和(自身を除く): 654490940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 389, 620, 778, 1556, 1945, 2311, 3890, 4622, 7780, 9244, 11555, 12059, 23110, 24118, 46220, 48236, 60295, 71641, 120590, 143282, 241180, 286564, 358205, 716410, 898979, 1432820, 1797958, 3595916, 4494895, 8989790, 17979580, 27868349, 55736698, 111473396, 139341745, 278683490, 557366980]

約数ペア:

[(1, 557366980), (2, 278683490), (4, 139341745), (5, 111473396), (10, 55736698), (20, 27868349), (31, 17979580), (62, 8989790), (124, 4494895), (155, 3595916), (310, 1797958), (389, 1432820), (620, 898979), (778, 716410), (1556, 358205), (1945, 286564), (2311, 241180), (3890, 143282), (4622, 120590), (7780, 71641), (9244, 60295), (11555, 48236), (12059, 46220), (23110, 24118)]