491092940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{811}}^1$

素因数の和:987

約数の個数: 96

約数和(自身を含む): 1186000704

約数和(自身を除く): 694907764

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 137, 170, 221, 260, 274, 340, 442, 548, 685, 811, 884, 1105, 1370, 1622, 1781, 2210, 2329, 2740, 3244, 3562, 4055, 4420, 4658, 7124, 8110, 8905, 9316, 10543, 11645, 13787, 16220, 17810, 21086, 23290, 27574, 30277, 35620, 42172, 46580, 52715, 55148, 60554, 68935, 105430, 111107, 121108, 137870, 151385, 179231, 210860, 222214, 275740, 302770, 358462, 444428, 555535, 605540, 716924, 896155, 1111070, 1444391, 1792310, 1888819, 2222140, 2888782, 3584620, 3777638, 5777564, 7221955, 7555276, 9444095, 14443910, 18888190, 24554647, 28887820, 37776380, 49109294, 98218588, 122773235, 245546470, 491092940]

約数ペア:

[(1, 491092940), (2, 245546470), (4, 122773235), (5, 98218588), (10, 49109294), (13, 37776380), (17, 28887820), (20, 24554647), (26, 18888190), (34, 14443910), (52, 9444095), (65, 7555276), (68, 7221955), (85, 5777564), (130, 3777638), (137, 3584620), (170, 2888782), (221, 2222140), (260, 1888819), (274, 1792310), (340, 1444391), (442, 1111070), (548, 896155), (685, 716924), (811, 605540), (884, 555535), (1105, 444428), (1370, 358462), (1622, 302770), (1781, 275740), (2210, 222214), (2329, 210860), (2740, 179231), (3244, 151385), (3562, 137870), (4055, 121108), (4420, 111107), (4658, 105430), (7124, 68935), (8110, 60554), (8905, 55148), (9316, 52715), (10543, 46580), (11645, 42172), (13787, 35620), (16220, 30277), (17810, 27574), (21086, 23290)]