20121482500

素因数分解:

$2^2\times 5^4\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1979}}^1$

素因数の和:2100

約数の個数: 180

約数和(自身を含む): 51828472080

約数和(自身を除く): 31706989580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 83, 98, 100, 125, 140, 166, 175, 196, 245, 250, 332, 350, 415, 490, 500, 581, 625, 700, 830, 875, 980, 1162, 1225, 1250, 1660, 1750, 1979, 2075, 2324, 2450, 2500, 2905, 3500, 3958, 4067, 4150, 4375, 4900, 5810, 6125, 7916, 8134, 8300, 8750, 9895, 10375, 11620, 12250, 13853, 14525, 16268, 17500, 19790, 20335, 20750, 24500, 27706, 29050, 30625, 39580, 40670, 41500, 49475, 51875, 55412, 58100, 61250, 69265, 72625, 81340, 96971, 98950, 101675, 103750, 122500, 138530, 145250, 164257, 193942, 197900, 203350, 207500, 247375, 277060, 290500, 328514, 346325, 363125, 387884, 406700, 484855, 494750, 508375, 657028, 692650, 726250, 821285, 969710, 989500, 1016750, 1149799, 1236875, 1385300, 1452500, 1642570, 1731625, 1939420, 2033500, 2299598, 2424275, 2473750, 2541875, 3285140, 3463250, 4106425, 4599196, 4848550, 4947500, 5083750, 5748995, 6926500, 8048593, 8212850, 8658125, 9697100, 10167500, 11497990, 12121375, 16097186, 16425700, 17316250, 20532125, 22995980, 24242750, 28744975, 32194372, 34632500, 40242965, 41064250, 48485500, 57489950, 60606875, 80485930, 82128500, 102660625, 114979900, 121213750, 143724875, 160971860, 201214825, 205321250, 242427500, 287449750, 402429650, 410642500, 574899500, 718624375, 804859300, 1006074125, 1437248750, 2012148250, 2874497500, 4024296500, 5030370625, 10060741250, 20121482500]

約数ペア:

[(1, 20121482500), (2, 10060741250), (4, 5030370625), (5, 4024296500), (7, 2874497500), (10, 2012148250), (14, 1437248750), (20, 1006074125), (25, 804859300), (28, 718624375), (35, 574899500), (49, 410642500), (50, 402429650), (70, 287449750), (83, 242427500), (98, 205321250), (100, 201214825), (125, 160971860), (140, 143724875), (166, 121213750), (175, 114979900), (196, 102660625), (245, 82128500), (250, 80485930), (332, 60606875), (350, 57489950), (415, 48485500), (490, 41064250), (500, 40242965), (581, 34632500), (625, 32194372), (700, 28744975), (830, 24242750), (875, 22995980), (980, 20532125), (1162, 17316250), (1225, 16425700), (1250, 16097186), (1660, 12121375), (1750, 11497990), (1979, 10167500), (2075, 9697100), (2324, 8658125), (2450, 8212850), (2500, 8048593), (2905, 6926500), (3500, 5748995), (3958, 5083750), (4067, 4947500), (4150, 4848550), (4375, 4599196), (4900, 4106425), (5810, 3463250), (6125, 3285140), (7916, 2541875), (8134, 2473750), (8300, 2424275), (8750, 2299598), (9895, 2033500), (10375, 1939420), (11620, 1731625), (12250, 1642570), (13853, 1452500), (14525, 1385300), (16268, 1236875), (17500, 1149799), (19790, 1016750), (20335, 989500), (20750, 969710), (24500, 821285), (27706, 726250), (29050, 692650), (30625, 657028), (39580, 508375), (40670, 494750), (41500, 484855), (49475, 406700), (51875, 387884), (55412, 363125), (58100, 346325), (61250, 328514), (69265, 290500), (72625, 277060), (81340, 247375), (96971, 207500), (98950, 203350), (101675, 197900), (103750, 193942), (122500, 164257), (138530, 145250)]