About the Number

381928960

381928959 ← → 381928961

2進数表記:10110110000111100011000000000

漢数字表記:三億八千百九十二万八千九百六十

素因数分解:

2 9 × 5 1 × 7 1 × 21313 1

素因数の和:21343
約数の個数: 80
約数和(自身を含む): 1046602656
約数和(自身を除く): 664673696

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 8960, 17920, 21313, 42626, 85252, 106565, 149191, 170504, 213130, 298382, 341008, 426260, 596764, 682016, 745955, 852520, 1193528, 1364032, 1491910, 1705040, 2387056, 2728064, 2983820, 3410080, 4774112, 5456128, 5967640, 6820160, 9548224, 10912256, 11935280, 13640320, 19096448, 23870560, 27280640, 38192896, 47741120, 54561280, 76385792, 95482240, 190964480, 381928960]

約数ペア:
[(1, 381928960), (2, 190964480), (4, 95482240), (5, 76385792), (7, 54561280), (8, 47741120), (10, 38192896), (14, 27280640), (16, 23870560), (20, 19096448), (28, 13640320), (32, 11935280), (35, 10912256), (40, 9548224), (56, 6820160), (64, 5967640), (70, 5456128), (80, 4774112), (112, 3410080), (128, 2983820), (140, 2728064), (160, 2387056), (224, 1705040), (256, 1491910), (280, 1364032), (320, 1193528), (448, 852520), (512, 745955), (560, 682016), (640, 596764), (896, 426260), (1120, 341008), (1280, 298382), (1792, 213130), (2240, 170504), (2560, 149191), (3584, 106565), (4480, 85252), (8960, 42626), (17920, 21313)]

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