About the Number

381396720

381396719 ← → 381396721

2進数表記:10110101110111010011011110000

漢数字表記:三億八千百三十九万六千七百二十

素因数分解:

2 4 × 3 1 × 5 1 × 31 1 × 51263 1

素因数の和:51310
約数の個数: 80
約数和(自身を含む): 1220493312
約数和(自身を除く): 839096592

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 51263, 102526, 153789, 205052, 256315, 307578, 410104, 512630, 615156, 768945, 820208, 1025260, 1230312, 1537890, 1589153, 2050520, 2460624, 3075780, 3178306, 4101040, 4767459, 6151560, 6356612, 7945765, 9534918, 12303120, 12713224, 15891530, 19069836, 23837295, 25426448, 31783060, 38139672, 47674590, 63566120, 76279344, 95349180, 127132240, 190698360, 381396720]

約数ペア:
[(1, 381396720), (2, 190698360), (3, 127132240), (4, 95349180), (5, 76279344), (6, 63566120), (8, 47674590), (10, 38139672), (12, 31783060), (15, 25426448), (16, 23837295), (20, 19069836), (24, 15891530), (30, 12713224), (31, 12303120), (40, 9534918), (48, 7945765), (60, 6356612), (62, 6151560), (80, 4767459), (93, 4101040), (120, 3178306), (124, 3075780), (155, 2460624), (186, 2050520), (240, 1589153), (248, 1537890), (310, 1230312), (372, 1025260), (465, 820208), (496, 768945), (620, 615156), (744, 512630), (930, 410104), (1240, 307578), (1488, 256315), (1860, 205052), (2480, 153789), (3720, 102526), (7440, 51263)]

このpageの処理時間: 0.009203195571899414 seconds