About the Number

420047280

420047279 ← → 420047281

2進数表記:11001000010010110100110110000

漢数字表記:四億二千四万七千二百八十

素因数分解:

2 4 × 3 2 × 5 1 × 239 1 × 2441 1

素因数の和:2699
約数の個数: 120
約数和(自身を含む): 1417141440
約数和(自身を除く): 997094160

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 239, 240, 360, 478, 717, 720, 956, 1195, 1434, 1912, 2151, 2390, 2441, 2868, 3585, 3824, 4302, 4780, 4882, 5736, 7170, 7323, 8604, 9560, 9764, 10755, 11472, 12205, 14340, 14646, 17208, 19120, 19528, 21510, 21969, 24410, 28680, 29292, 34416, 36615, 39056, 43020, 43938, 48820, 57360, 58584, 73230, 86040, 87876, 97640, 109845, 117168, 146460, 172080, 175752, 195280, 219690, 292920, 351504, 439380, 583399, 585840, 878760, 1166798, 1750197, 1757520, 2333596, 2916995, 3500394, 4667192, 5250591, 5833990, 7000788, 8750985, 9334384, 10501182, 11667980, 14001576, 17501970, 21002364, 23335960, 26252955, 28003152, 35003940, 42004728, 46671920, 52505910, 70007880, 84009456, 105011820, 140015760, 210023640, 420047280]

約数ペア:
[(1, 420047280), (2, 210023640), (3, 140015760), (4, 105011820), (5, 84009456), (6, 70007880), (8, 52505910), (9, 46671920), (10, 42004728), (12, 35003940), (15, 28003152), (16, 26252955), (18, 23335960), (20, 21002364), (24, 17501970), (30, 14001576), (36, 11667980), (40, 10501182), (45, 9334384), (48, 8750985), (60, 7000788), (72, 5833990), (80, 5250591), (90, 4667192), (120, 3500394), (144, 2916995), (180, 2333596), (239, 1757520), (240, 1750197), (360, 1166798), (478, 878760), (717, 585840), (720, 583399), (956, 439380), (1195, 351504), (1434, 292920), (1912, 219690), (2151, 195280), (2390, 175752), (2441, 172080), (2868, 146460), (3585, 117168), (3824, 109845), (4302, 97640), (4780, 87876), (4882, 86040), (5736, 73230), (7170, 58584), (7323, 57360), (8604, 48820), (9560, 43938), (9764, 43020), (10755, 39056), (11472, 36615), (12205, 34416), (14340, 29292), (14646, 28680), (17208, 24410), (19120, 21969), (19528, 21510)]

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