208678860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{347}}^1$

素因数の和:632

約数の個数: 144

約数和(自身を含む): 686308896

約数和(自身を除く): 477630036

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 257, 260, 347, 390, 468, 514, 585, 694, 771, 780, 1028, 1041, 1170, 1285, 1388, 1542, 1735, 2082, 2313, 2340, 2570, 3084, 3123, 3341, 3470, 3855, 4164, 4511, 4626, 5140, 5205, 6246, 6682, 6940, 7710, 9022, 9252, 10023, 10410, 11565, 12492, 13364, 13533, 15420, 15615, 16705, 18044, 20046, 20820, 22555, 23130, 27066, 30069, 31230, 33410, 40092, 40599, 45110, 46260, 50115, 54132, 60138, 62460, 66820, 67665, 81198, 89179, 90220, 100230, 120276, 135330, 150345, 162396, 178358, 200460, 202995, 267537, 270660, 300690, 356716, 405990, 445895, 535074, 601380, 802611, 811980, 891790, 1070148, 1159327, 1337685, 1605222, 1783580, 2318654, 2675370, 3210444, 3477981, 4013055, 4637308, 5350740, 5796635, 6955962, 8026110, 10433943, 11593270, 13911924, 16052220, 17389905, 20867886, 23186540, 34779810, 41735772, 52169715, 69559620, 104339430, 208678860]

約数ペア:

[(1, 208678860), (2, 104339430), (3, 69559620), (4, 52169715), (5, 41735772), (6, 34779810), (9, 23186540), (10, 20867886), (12, 17389905), (13, 16052220), (15, 13911924), (18, 11593270), (20, 10433943), (26, 8026110), (30, 6955962), (36, 5796635), (39, 5350740), (45, 4637308), (52, 4013055), (60, 3477981), (65, 3210444), (78, 2675370), (90, 2318654), (117, 1783580), (130, 1605222), (156, 1337685), (180, 1159327), (195, 1070148), (234, 891790), (257, 811980), (260, 802611), (347, 601380), (390, 535074), (468, 445895), (514, 405990), (585, 356716), (694, 300690), (771, 270660), (780, 267537), (1028, 202995), (1041, 200460), (1170, 178358), (1285, 162396), (1388, 150345), (1542, 135330), (1735, 120276), (2082, 100230), (2313, 90220), (2340, 89179), (2570, 81198), (3084, 67665), (3123, 66820), (3341, 62460), (3470, 60138), (3855, 54132), (4164, 50115), (4511, 46260), (4626, 45110), (5140, 40599), (5205, 40092), (6246, 33410), (6682, 31230), (6940, 30069), (7710, 27066), (9022, 23130), (9252, 22555), (10023, 20820), (10410, 20046), (11565, 18044), (12492, 16705), (13364, 15615), (13533, 15420)]