About the Number

20155419920

20155419919 ← → 20155419921

2進数表記:10010110001010110110100110100010000

漢数字表記:二百一億五千五百四十一万九千九百二十

素因数分解:

2 4 × 5 1 × 29 1 × 61 1 × 142421 1

素因数の和:142524
約数の個数: 80
約数和(自身を含む): 49272315120
約数和(自身を除く): 29116895200

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 61, 80, 116, 122, 145, 232, 244, 290, 305, 464, 488, 580, 610, 976, 1160, 1220, 1769, 2320, 2440, 3538, 4880, 7076, 8845, 14152, 17690, 28304, 35380, 70760, 141520, 142421, 284842, 569684, 712105, 1139368, 1424210, 2278736, 2848420, 4130209, 5696840, 8260418, 8687681, 11393680, 16520836, 17375362, 20651045, 33041672, 34750724, 41302090, 43438405, 66083344, 69501448, 82604180, 86876810, 139002896, 165208360, 173753620, 251942749, 330416720, 347507240, 503885498, 695014480, 1007770996, 1259713745, 2015541992, 2519427490, 4031083984, 5038854980, 10077709960, 20155419920]

約数ペア:
[(1, 20155419920), (2, 10077709960), (4, 5038854980), (5, 4031083984), (8, 2519427490), (10, 2015541992), (16, 1259713745), (20, 1007770996), (29, 695014480), (40, 503885498), (58, 347507240), (61, 330416720), (80, 251942749), (116, 173753620), (122, 165208360), (145, 139002896), (232, 86876810), (244, 82604180), (290, 69501448), (305, 66083344), (464, 43438405), (488, 41302090), (580, 34750724), (610, 33041672), (976, 20651045), (1160, 17375362), (1220, 16520836), (1769, 11393680), (2320, 8687681), (2440, 8260418), (3538, 5696840), (4880, 4130209), (7076, 2848420), (8845, 2278736), (14152, 1424210), (17690, 1139368), (28304, 712105), (35380, 569684), (70760, 284842), (141520, 142421)]

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