About the Number

216906720

216906719 ← → 216906721

2進数表記:1100111011011011101111100000

漢数字表記:二億千六百九十万六千七百二十

素因数分解:

2 5 × 3 1 × 5 1 × 139 1 × 3251 1

素因数の和:3408
約数の個数: 96
約数和(自身を含む): 688383360
約数和(自身を除く): 471476640

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 139, 160, 240, 278, 417, 480, 556, 695, 834, 1112, 1390, 1668, 2085, 2224, 2780, 3251, 3336, 4170, 4448, 5560, 6502, 6672, 8340, 9753, 11120, 13004, 13344, 16255, 16680, 19506, 22240, 26008, 32510, 33360, 39012, 48765, 52016, 65020, 66720, 78024, 97530, 104032, 130040, 156048, 195060, 260080, 312096, 390120, 451889, 520160, 780240, 903778, 1355667, 1560480, 1807556, 2259445, 2711334, 3615112, 4518890, 5422668, 6778335, 7230224, 9037780, 10845336, 13556670, 14460448, 18075560, 21690672, 27113340, 36151120, 43381344, 54226680, 72302240, 108453360, 216906720]

約数ペア:
[(1, 216906720), (2, 108453360), (3, 72302240), (4, 54226680), (5, 43381344), (6, 36151120), (8, 27113340), (10, 21690672), (12, 18075560), (15, 14460448), (16, 13556670), (20, 10845336), (24, 9037780), (30, 7230224), (32, 6778335), (40, 5422668), (48, 4518890), (60, 3615112), (80, 2711334), (96, 2259445), (120, 1807556), (139, 1560480), (160, 1355667), (240, 903778), (278, 780240), (417, 520160), (480, 451889), (556, 390120), (695, 312096), (834, 260080), (1112, 195060), (1390, 156048), (1668, 130040), (2085, 104032), (2224, 97530), (2780, 78024), (3251, 66720), (3336, 65020), (4170, 52016), (4448, 48765), (5560, 39012), (6502, 33360), (6672, 32510), (8340, 26008), (9753, 22240), (11120, 19506), (13004, 16680), (13344, 16255)]

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