81109210

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 195955200

約数和(自身を除く): 114845990

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 49, 65, 70, 85, 91, 98, 107, 119, 130, 170, 182, 214, 221, 238, 245, 343, 442, 455, 490, 535, 595, 637, 686, 749, 833, 910, 1070, 1105, 1190, 1274, 1391, 1498, 1547, 1666, 1715, 1819, 2210, 2782, 3094, 3185, 3430, 3638, 3745, 4165, 4459, 5243, 5831, 6370, 6955, 7490, 7735, 8330, 8918, 9095, 9737, 10486, 10829, 11662, 12733, 13910, 15470, 18190, 19474, 21658, 22295, 23647, 25466, 26215, 29155, 36701, 44590, 47294, 48685, 52430, 54145, 58310, 63665, 68159, 73402, 75803, 89131, 97370, 108290, 118235, 127330, 136318, 151606, 165529, 178262, 183505, 236470, 331058, 340795, 367010, 379015, 445655, 477113, 623917, 681590, 758030, 827645, 891310, 954226, 1158703, 1247834, 1655290, 2317406, 2385565, 3119585, 4771130, 5793515, 6239170, 8110921, 11587030, 16221842, 40554605, 81109210]

約数ペア:

[(1, 81109210), (2, 40554605), (5, 16221842), (7, 11587030), (10, 8110921), (13, 6239170), (14, 5793515), (17, 4771130), (26, 3119585), (34, 2385565), (35, 2317406), (49, 1655290), (65, 1247834), (70, 1158703), (85, 954226), (91, 891310), (98, 827645), (107, 758030), (119, 681590), (130, 623917), (170, 477113), (182, 445655), (214, 379015), (221, 367010), (238, 340795), (245, 331058), (343, 236470), (442, 183505), (455, 178262), (490, 165529), (535, 151606), (595, 136318), (637, 127330), (686, 118235), (749, 108290), (833, 97370), (910, 89131), (1070, 75803), (1105, 73402), (1190, 68159), (1274, 63665), (1391, 58310), (1498, 54145), (1547, 52430), (1666, 48685), (1715, 47294), (1819, 44590), (2210, 36701), (2782, 29155), (3094, 26215), (3185, 25466), (3430, 23647), (3638, 22295), (3745, 21658), (4165, 19474), (4459, 18190), (5243, 15470), (5831, 13910), (6370, 12733), (6955, 11662), (7490, 10829), (7735, 10486), (8330, 9737), (8918, 9095)]