About the Number

25040640

25040639 ← → 25040641

2進数表記:1011111100001011100000000

漢数字表記:二千五百四万六百四十

素因数分解:

2 8 × 3 1 × 5 1 × 6521 1

素因数の和:6545
約数の個数: 72
約数和(自身を含む): 79985808
約数和(自身を除く): 54945168

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 6521, 13042, 19563, 26084, 32605, 39126, 52168, 65210, 78252, 97815, 104336, 130420, 156504, 195630, 208672, 260840, 313008, 391260, 417344, 521680, 626016, 782520, 834688, 1043360, 1252032, 1565040, 1669376, 2086720, 2504064, 3130080, 4173440, 5008128, 6260160, 8346880, 12520320, 25040640]

約数ペア:
[(1, 25040640), (2, 12520320), (3, 8346880), (4, 6260160), (5, 5008128), (6, 4173440), (8, 3130080), (10, 2504064), (12, 2086720), (15, 1669376), (16, 1565040), (20, 1252032), (24, 1043360), (30, 834688), (32, 782520), (40, 626016), (48, 521680), (60, 417344), (64, 391260), (80, 313008), (96, 260840), (120, 208672), (128, 195630), (160, 156504), (192, 130420), (240, 104336), (256, 97815), (320, 78252), (384, 65210), (480, 52168), (640, 39126), (768, 32605), (960, 26084), (1280, 19563), (1920, 13042), (3840, 6521)]

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