About the Number

12804900400

12804900399 ← → 12804900401

2進数表記:1011111011001110110100011000110000

漢数字表記:百二十八億四百九十万四百

素因数分解:

2 4 × 5 2 × 23 1 × 61 1 × 22817 1

素因数の和:22919
約数の個数: 120
約数和(自身を含む): 32629009824
約数和(自身を除く): 19824109424

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 61, 80, 92, 100, 115, 122, 184, 200, 230, 244, 305, 368, 400, 460, 488, 575, 610, 920, 976, 1150, 1220, 1403, 1525, 1840, 2300, 2440, 2806, 3050, 4600, 4880, 5612, 6100, 7015, 9200, 11224, 12200, 14030, 22448, 22817, 24400, 28060, 35075, 45634, 56120, 70150, 91268, 112240, 114085, 140300, 182536, 228170, 280600, 365072, 456340, 524791, 561200, 570425, 912680, 1049582, 1140850, 1391837, 1825360, 2099164, 2281700, 2623955, 2783674, 4198328, 4563400, 5247910, 5567348, 6959185, 8396656, 9126800, 10495820, 11134696, 13119775, 13918370, 20991640, 22269392, 26239550, 27836740, 32012251, 34795925, 41983280, 52479100, 55673480, 64024502, 69591850, 104958200, 111346960, 128049004, 139183700, 160061255, 209916400, 256098008, 278367400, 320122510, 512196016, 556734800, 640245020, 800306275, 1280490040, 1600612550, 2560980080, 3201225100, 6402450200, 12804900400]

約数ペア:
[(1, 12804900400), (2, 6402450200), (4, 3201225100), (5, 2560980080), (8, 1600612550), (10, 1280490040), (16, 800306275), (20, 640245020), (23, 556734800), (25, 512196016), (40, 320122510), (46, 278367400), (50, 256098008), (61, 209916400), (80, 160061255), (92, 139183700), (100, 128049004), (115, 111346960), (122, 104958200), (184, 69591850), (200, 64024502), (230, 55673480), (244, 52479100), (305, 41983280), (368, 34795925), (400, 32012251), (460, 27836740), (488, 26239550), (575, 22269392), (610, 20991640), (920, 13918370), (976, 13119775), (1150, 11134696), (1220, 10495820), (1403, 9126800), (1525, 8396656), (1840, 6959185), (2300, 5567348), (2440, 5247910), (2806, 4563400), (3050, 4198328), (4600, 2783674), (4880, 2623955), (5612, 2281700), (6100, 2099164), (7015, 1825360), (9200, 1391837), (11224, 1140850), (12200, 1049582), (14030, 912680), (22448, 570425), (22817, 561200), (24400, 524791), (28060, 456340), (35075, 365072), (45634, 280600), (56120, 228170), (70150, 182536), (91268, 140300), (112240, 114085)]

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