About the Number
121801920
2進数表記:111010000101000110011000000
漢数字表記:一億二千百八十万千九百二十
素因数分解:
素因数の和:1878
約数の個数: 112
約数和(自身を含む): 392387328
約数和(自身を除く): 270585408
約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 120, 142, 160, 192, 213, 240, 284, 320, 355, 426, 480, 568, 710, 852, 960, 1065, 1136, 1420, 1704, 1787, 2130, 2272, 2840, 3408, 3574, 4260, 4544, 5361, 5680, 6816, 7148, 8520, 8935, 10722, 11360, 13632, 14296, 17040, 17870, 21444, 22720, 26805, 28592, 34080, 35740, 42888, 53610, 57184, 68160, 71480, 85776, 107220, 114368, 126877, 142960, 171552, 214440, 253754, 285920, 343104, 380631, 428880, 507508, 571840, 634385, 761262, 857760, 1015016, 1268770, 1522524, 1715520, 1903155, 2030032, 2537540, 3045048, 3806310, 4060064, 5075080, 6090096, 7612620, 8120128, 10150160, 12180192, 15225240, 20300320, 24360384, 30450480, 40600640, 60900960, 121801920]
約数ペア:
[(1, 121801920), (2, 60900960), (3, 40600640), (4, 30450480), (5, 24360384), (6, 20300320), (8, 15225240), (10, 12180192), (12, 10150160), (15, 8120128), (16, 7612620), (20, 6090096), (24, 5075080), (30, 4060064), (32, 3806310), (40, 3045048), (48, 2537540), (60, 2030032), (64, 1903155), (71, 1715520), (80, 1522524), (96, 1268770), (120, 1015016), (142, 857760), (160, 761262), (192, 634385), (213, 571840), (240, 507508), (284, 428880), (320, 380631), (355, 343104), (426, 285920), (480, 253754), (568, 214440), (710, 171552), (852, 142960), (960, 126877), (1065, 114368), (1136, 107220), (1420, 85776), (1704, 71480), (1787, 68160), (2130, 57184), (2272, 53610), (2840, 42888), (3408, 35740), (3574, 34080), (4260, 28592), (4544, 26805), (5361, 22720), (5680, 21444), (6816, 17870), (7148, 17040), (8520, 14296), (8935, 13632), (10722, 11360)]このpageの処理時間: 0.030321359634399414 seconds