636687920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{23339}}^1$

素因数の和:23394

約数の個数: 80

約数和(自身を含む): 1667036160

約数和(自身を除く): 1030348240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 13640, 23339, 27280, 46678, 93356, 116695, 186712, 233390, 256729, 373424, 466780, 513458, 723509, 933560, 1026916, 1283645, 1447018, 1867120, 2053832, 2567290, 2894036, 3617545, 4107664, 5134580, 5788072, 7235090, 7958599, 10269160, 11576144, 14470180, 15917198, 20538320, 28940360, 31834396, 39792995, 57880720, 63668792, 79585990, 127337584, 159171980, 318343960, 636687920]

約数ペア:

[(1, 636687920), (2, 318343960), (4, 159171980), (5, 127337584), (8, 79585990), (10, 63668792), (11, 57880720), (16, 39792995), (20, 31834396), (22, 28940360), (31, 20538320), (40, 15917198), (44, 14470180), (55, 11576144), (62, 10269160), (80, 7958599), (88, 7235090), (110, 5788072), (124, 5134580), (155, 4107664), (176, 3617545), (220, 2894036), (248, 2567290), (310, 2053832), (341, 1867120), (440, 1447018), (496, 1283645), (620, 1026916), (682, 933560), (880, 723509), (1240, 513458), (1364, 466780), (1705, 373424), (2480, 256729), (2728, 233390), (3410, 186712), (5456, 116695), (6820, 93356), (13640, 46678), (23339, 27280)]