About the Number

389789040

389789039 ← → 389789041

2進数表記:10111001110111011010101110000

漢数字表記:三億八千九百七十八万九千四十

素因数分解:

2 4 × 3 1 × 5 1 × 31 1 × 52391 1

素因数の和:52438
約数の個数: 80
約数和(自身を含む): 1247348736
約数和(自身を除く): 857559696

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, 52391, 104782, 157173, 209564, 261955, 314346, 419128, 523910, 628692, 785865, 838256, 1047820, 1257384, 1571730, 1624121, 2095640, 2514768, 3143460, 3248242, 4191280, 4872363, 6286920, 6496484, 8120605, 9744726, 12573840, 12992968, 16241210, 19489452, 24361815, 25985936, 32482420, 38978904, 48723630, 64964840, 77957808, 97447260, 129929680, 194894520, 389789040]

約数ペア:
[(1, 389789040), (2, 194894520), (3, 129929680), (4, 97447260), (5, 77957808), (6, 64964840), (8, 48723630), (10, 38978904), (12, 32482420), (15, 25985936), (16, 24361815), (20, 19489452), (24, 16241210), (30, 12992968), (31, 12573840), (40, 9744726), (48, 8120605), (60, 6496484), (62, 6286920), (80, 4872363), (93, 4191280), (120, 3248242), (124, 3143460), (155, 2514768), (186, 2095640), (240, 1624121), (248, 1571730), (310, 1257384), (372, 1047820), (465, 838256), (496, 785865), (620, 628692), (744, 523910), (930, 419128), (1240, 314346), (1488, 261955), (1860, 209564), (2480, 157173), (3720, 104782), (7440, 52391)]

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