21099023440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2531}}^1\times {\mathrm{9473}}^1$

素因数の和:12028

約数の個数: 80

約数和(自身を含む): 53541590976

約数和(自身を除く): 32442567536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2531, 5062, 9473, 10124, 12655, 18946, 20248, 25310, 27841, 37892, 40496, 47365, 50620, 55682, 75784, 94730, 101240, 104203, 111364, 139205, 151568, 189460, 202480, 208406, 222728, 278410, 378920, 416812, 445456, 521015, 556820, 757840, 833624, 1042030, 1113640, 1667248, 2084060, 2227280, 4168120, 8336240, 23976163, 47952326, 95904652, 119880815, 191809304, 239761630, 263737793, 383618608, 479523260, 527475586, 959046520, 1054951172, 1318688965, 1918093040, 2109902344, 2637377930, 4219804688, 5274755860, 10549511720, 21099023440]

約数ペア:

[(1, 21099023440), (2, 10549511720), (4, 5274755860), (5, 4219804688), (8, 2637377930), (10, 2109902344), (11, 1918093040), (16, 1318688965), (20, 1054951172), (22, 959046520), (40, 527475586), (44, 479523260), (55, 383618608), (80, 263737793), (88, 239761630), (110, 191809304), (176, 119880815), (220, 95904652), (440, 47952326), (880, 23976163), (2531, 8336240), (5062, 4168120), (9473, 2227280), (10124, 2084060), (12655, 1667248), (18946, 1113640), (20248, 1042030), (25310, 833624), (27841, 757840), (37892, 556820), (40496, 521015), (47365, 445456), (50620, 416812), (55682, 378920), (75784, 278410), (94730, 222728), (101240, 208406), (104203, 202480), (111364, 189460), (139205, 151568)]