About the Number

272688640

272688639 ← → 272688641

2進数表記:10000010000001110011000000000

漢数字表記:二億七千二百六十八万八千六百四十

素因数分解:

2 9 × 5 1 × 7 1 × 15217 1

素因数の和:15247
約数の個数: 80
約数和(自身を含む): 747264672
約数和(自身を除く): 474576032

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, 15217, 17920, 30434, 60868, 76085, 106519, 121736, 152170, 213038, 243472, 304340, 426076, 486944, 532595, 608680, 852152, 973888, 1065190, 1217360, 1704304, 1947776, 2130380, 2434720, 3408608, 3895552, 4260760, 4869440, 6817216, 7791104, 8521520, 9738880, 13634432, 17043040, 19477760, 27268864, 34086080, 38955520, 54537728, 68172160, 136344320, 272688640]

約数ペア:
[(1, 272688640), (2, 136344320), (4, 68172160), (5, 54537728), (7, 38955520), (8, 34086080), (10, 27268864), (14, 19477760), (16, 17043040), (20, 13634432), (28, 9738880), (32, 8521520), (35, 7791104), (40, 6817216), (56, 4869440), (64, 4260760), (70, 3895552), (80, 3408608), (112, 2434720), (128, 2130380), (140, 1947776), (160, 1704304), (224, 1217360), (256, 1065190), (280, 973888), (320, 852152), (448, 608680), (512, 532595), (560, 486944), (640, 426076), (896, 304340), (1120, 243472), (1280, 213038), (1792, 152170), (2240, 121736), (2560, 106519), (3584, 76085), (4480, 60868), (8960, 30434), (15217, 17920)]

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