About the Number

28901040

28901039 ← → 28901041

2進数表記:1101110001111111010110000

漢数字表記:二千八百九十万千四十

素因数分解:

2 4 × 3 1 × 5 1 × 7 1 × 17203 1

素因数の和:17226
約数の個数: 80
約数和(自身を含む): 102398208
約数和(自身を除く): 73497168

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 17203, 34406, 51609, 68812, 86015, 103218, 120421, 137624, 172030, 206436, 240842, 258045, 275248, 344060, 361263, 412872, 481684, 516090, 602105, 688120, 722526, 825744, 963368, 1032180, 1204210, 1376240, 1445052, 1806315, 1926736, 2064360, 2408420, 2890104, 3612630, 4128720, 4816840, 5780208, 7225260, 9633680, 14450520, 28901040]

約数ペア:
[(1, 28901040), (2, 14450520), (3, 9633680), (4, 7225260), (5, 5780208), (6, 4816840), (7, 4128720), (8, 3612630), (10, 2890104), (12, 2408420), (14, 2064360), (15, 1926736), (16, 1806315), (20, 1445052), (21, 1376240), (24, 1204210), (28, 1032180), (30, 963368), (35, 825744), (40, 722526), (42, 688120), (48, 602105), (56, 516090), (60, 481684), (70, 412872), (80, 361263), (84, 344060), (105, 275248), (112, 258045), (120, 240842), (140, 206436), (168, 172030), (210, 137624), (240, 120421), (280, 103218), (336, 86015), (420, 68812), (560, 51609), (840, 34406), (1680, 17203)]

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