42890980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:401

約数の個数: 96

約数和(自身を含む): 107089920

約数和(自身を除く): 64198940

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 31, 38, 44, 55, 62, 76, 95, 110, 124, 155, 190, 209, 220, 310, 331, 341, 380, 418, 589, 620, 662, 682, 836, 1045, 1178, 1324, 1364, 1655, 1705, 2090, 2356, 2945, 3310, 3410, 3641, 4180, 5890, 6289, 6479, 6620, 6820, 7282, 10261, 11780, 12578, 12958, 14564, 18205, 20522, 25156, 25916, 31445, 32395, 36410, 41044, 51305, 62890, 64790, 69179, 72820, 102610, 112871, 125780, 129580, 138358, 194959, 205220, 225742, 276716, 345895, 389918, 451484, 564355, 691790, 779836, 974795, 1128710, 1383580, 1949590, 2144549, 2257420, 3899180, 4289098, 8578196, 10722745, 21445490, 42890980]

約数ペア:

[(1, 42890980), (2, 21445490), (4, 10722745), (5, 8578196), (10, 4289098), (11, 3899180), (19, 2257420), (20, 2144549), (22, 1949590), (31, 1383580), (38, 1128710), (44, 974795), (55, 779836), (62, 691790), (76, 564355), (95, 451484), (110, 389918), (124, 345895), (155, 276716), (190, 225742), (209, 205220), (220, 194959), (310, 138358), (331, 129580), (341, 125780), (380, 112871), (418, 102610), (589, 72820), (620, 69179), (662, 64790), (682, 62890), (836, 51305), (1045, 41044), (1178, 36410), (1324, 32395), (1364, 31445), (1655, 25916), (1705, 25156), (2090, 20522), (2356, 18205), (2945, 14564), (3310, 12958), (3410, 12578), (3641, 11780), (4180, 10261), (5890, 7282), (6289, 6820), (6479, 6620)]