20330325760

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{1217}}^1$

素因数の和:1690

約数の個数: 144

約数和(自身を含む): 50429175552

約数和(自身を除く): 30098849792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 421, 496, 620, 640, 842, 992, 1217, 1240, 1280, 1684, 1984, 2105, 2434, 2480, 3368, 3968, 4210, 4868, 4960, 6085, 6736, 7936, 8420, 9736, 9920, 12170, 13051, 13472, 16840, 19472, 19840, 24340, 26102, 26944, 33680, 37727, 38944, 39680, 48680, 52204, 53888, 65255, 67360, 75454, 77888, 97360, 104408, 107776, 130510, 134720, 150908, 155776, 188635, 194720, 208816, 261020, 269440, 301816, 311552, 377270, 389440, 417632, 512357, 522040, 538880, 603632, 754540, 778880, 835264, 1024714, 1044080, 1207264, 1509080, 1557760, 1670528, 2049428, 2088160, 2414528, 2561785, 3018160, 3341056, 4098856, 4176320, 4829056, 5123570, 6036320, 8197712, 8352640, 9658112, 10247140, 12072640, 15883067, 16395424, 16705280, 20494280, 24145280, 31766134, 32790848, 40988560, 48290560, 63532268, 65581696, 79415335, 81977120, 127064536, 131163392, 158830670, 163954240, 254129072, 317661340, 327908480, 508258144, 635322680, 655816960, 1016516288, 1270645360, 2033032576, 2541290720, 4066065152, 5082581440, 10165162880, 20330325760]

約数ペア:

[(1, 20330325760), (2, 10165162880), (4, 5082581440), (5, 4066065152), (8, 2541290720), (10, 2033032576), (16, 1270645360), (20, 1016516288), (31, 655816960), (32, 635322680), (40, 508258144), (62, 327908480), (64, 317661340), (80, 254129072), (124, 163954240), (128, 158830670), (155, 131163392), (160, 127064536), (248, 81977120), (256, 79415335), (310, 65581696), (320, 63532268), (421, 48290560), (496, 40988560), (620, 32790848), (640, 31766134), (842, 24145280), (992, 20494280), (1217, 16705280), (1240, 16395424), (1280, 15883067), (1684, 12072640), (1984, 10247140), (2105, 9658112), (2434, 8352640), (2480, 8197712), (3368, 6036320), (3968, 5123570), (4210, 4829056), (4868, 4176320), (4960, 4098856), (6085, 3341056), (6736, 3018160), (7936, 2561785), (8420, 2414528), (9736, 2088160), (9920, 2049428), (12170, 1670528), (13051, 1557760), (13472, 1509080), (16840, 1207264), (19472, 1044080), (19840, 1024714), (24340, 835264), (26102, 778880), (26944, 754540), (33680, 603632), (37727, 538880), (38944, 522040), (39680, 512357), (48680, 417632), (52204, 389440), (53888, 377270), (65255, 311552), (67360, 301816), (75454, 269440), (77888, 261020), (97360, 208816), (104408, 194720), (107776, 188635), (130510, 155776), (134720, 150908)]