20512505380

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1\times {\mathrm{1823}}^1$

素因数の和:2317

約数の個数: 96

約数和(自身を含む): 45825067008

約数和(自身を除く): 25312561628

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 230, 244, 305, 401, 460, 610, 802, 1220, 1403, 1604, 1823, 2005, 2806, 3646, 4010, 5612, 7015, 7292, 8020, 9115, 9223, 14030, 18230, 18446, 24461, 28060, 36460, 36892, 41929, 46115, 48922, 83858, 92230, 97844, 111203, 122305, 167716, 184460, 209645, 222406, 244610, 419290, 444812, 489220, 556015, 562603, 731023, 838580, 1112030, 1125206, 1462046, 2224060, 2250412, 2557669, 2813015, 2924092, 3655115, 5115338, 5626030, 7310230, 10230676, 11252060, 12788345, 14620460, 16813529, 25576690, 33627058, 44592403, 51153380, 67254116, 84067645, 89184806, 168135290, 178369612, 222962015, 336270580, 445924030, 891848060, 1025625269, 2051250538, 4102501076, 5128126345, 10256252690, 20512505380]

約数ペア:

[(1, 20512505380), (2, 10256252690), (4, 5128126345), (5, 4102501076), (10, 2051250538), (20, 1025625269), (23, 891848060), (46, 445924030), (61, 336270580), (92, 222962015), (115, 178369612), (122, 168135290), (230, 89184806), (244, 84067645), (305, 67254116), (401, 51153380), (460, 44592403), (610, 33627058), (802, 25576690), (1220, 16813529), (1403, 14620460), (1604, 12788345), (1823, 11252060), (2005, 10230676), (2806, 7310230), (3646, 5626030), (4010, 5115338), (5612, 3655115), (7015, 2924092), (7292, 2813015), (8020, 2557669), (9115, 2250412), (9223, 2224060), (14030, 1462046), (18230, 1125206), (18446, 1112030), (24461, 838580), (28060, 731023), (36460, 562603), (36892, 556015), (41929, 489220), (46115, 444812), (48922, 419290), (83858, 244610), (92230, 222406), (97844, 209645), (111203, 184460), (122305, 167716)]