About the Number

201420640

201420639 ← → 201420641

2進数表記:1100000000010110111101100000

漢数字表記:二億百四十二万六百四十

素因数分解:

2 5 × 5 1 × 31 1 × 40609 1

素因数の和:40655
約数の個数: 48
約数和(自身を含む): 491218560
約数和(自身を除く): 289797920

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 40609, 81218, 162436, 203045, 324872, 406090, 649744, 812180, 1258879, 1299488, 1624360, 2517758, 3248720, 5035516, 6294395, 6497440, 10071032, 12588790, 20142064, 25177580, 40284128, 50355160, 100710320, 201420640]

約数ペア:
[(1, 201420640), (2, 100710320), (4, 50355160), (5, 40284128), (8, 25177580), (10, 20142064), (16, 12588790), (20, 10071032), (31, 6497440), (32, 6294395), (40, 5035516), (62, 3248720), (80, 2517758), (124, 1624360), (155, 1299488), (160, 1258879), (248, 812180), (310, 649744), (496, 406090), (620, 324872), (992, 203045), (1240, 162436), (2480, 81218), (4960, 40609)]

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