About the Number

28518720

28518719 ← → 28518721

2進数表記:1101100110010100101000000

漢数字表記:二千八百五十一万八千七百二十

素因数分解:

2 6 × 3 1 × 5 1 × 61 1 × 487 1

素因数の和:568
約数の個数: 112
約数和(自身を含む): 92220288
約数和(自身を除く): 63701568

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 160, 183, 192, 240, 244, 305, 320, 366, 480, 487, 488, 610, 732, 915, 960, 974, 976, 1220, 1461, 1464, 1830, 1948, 1952, 2435, 2440, 2922, 2928, 3660, 3896, 3904, 4870, 4880, 5844, 5856, 7305, 7320, 7792, 9740, 9760, 11688, 11712, 14610, 14640, 15584, 19480, 19520, 23376, 29220, 29280, 29707, 31168, 38960, 46752, 58440, 58560, 59414, 77920, 89121, 93504, 116880, 118828, 148535, 155840, 178242, 233760, 237656, 297070, 356484, 445605, 467520, 475312, 594140, 712968, 891210, 950624, 1188280, 1425936, 1782420, 1901248, 2376560, 2851872, 3564840, 4753120, 5703744, 7129680, 9506240, 14259360, 28518720]

約数ペア:
[(1, 28518720), (2, 14259360), (3, 9506240), (4, 7129680), (5, 5703744), (6, 4753120), (8, 3564840), (10, 2851872), (12, 2376560), (15, 1901248), (16, 1782420), (20, 1425936), (24, 1188280), (30, 950624), (32, 891210), (40, 712968), (48, 594140), (60, 475312), (61, 467520), (64, 445605), (80, 356484), (96, 297070), (120, 237656), (122, 233760), (160, 178242), (183, 155840), (192, 148535), (240, 118828), (244, 116880), (305, 93504), (320, 89121), (366, 77920), (480, 59414), (487, 58560), (488, 58440), (610, 46752), (732, 38960), (915, 31168), (960, 29707), (974, 29280), (976, 29220), (1220, 23376), (1461, 19520), (1464, 19480), (1830, 15584), (1948, 14640), (1952, 14610), (2435, 11712), (2440, 11688), (2922, 9760), (2928, 9740), (3660, 7792), (3896, 7320), (3904, 7305), (4870, 5856), (4880, 5844)]

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