About the Number

28802790

28802789 ← → 28802791

2進数表記:1101101110111111011100110

漢数字表記:二千八百八十万二千七百九十

素因数分解:

2 1 × 3 8 × 5 1 × 439 1

素因数の和:470
約数の個数: 72
約数和(自身を含む): 77940720
約数和(自身を除く): 49137930

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 439, 486, 729, 810, 878, 1215, 1317, 1458, 2187, 2195, 2430, 2634, 3645, 3951, 4374, 4390, 6561, 6585, 7290, 7902, 10935, 11853, 13122, 13170, 19755, 21870, 23706, 32805, 35559, 39510, 59265, 65610, 71118, 106677, 118530, 177795, 213354, 320031, 355590, 533385, 640062, 960093, 1066770, 1600155, 1920186, 2880279, 3200310, 4800465, 5760558, 9600930, 14401395, 28802790]

約数ペア:
[(1, 28802790), (2, 14401395), (3, 9600930), (5, 5760558), (6, 4800465), (9, 3200310), (10, 2880279), (15, 1920186), (18, 1600155), (27, 1066770), (30, 960093), (45, 640062), (54, 533385), (81, 355590), (90, 320031), (135, 213354), (162, 177795), (243, 118530), (270, 106677), (405, 71118), (439, 65610), (486, 59265), (729, 39510), (810, 35559), (878, 32805), (1215, 23706), (1317, 21870), (1458, 19755), (2187, 13170), (2195, 13122), (2430, 11853), (2634, 10935), (3645, 7902), (3951, 7290), (4374, 6585), (4390, 6561)]

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