About the Number

1218989828

1218989827 ← → 1218989829

2進数表記:1001000101010000100111100000100

漢数字表記:十二億千八百九十八万九千八百二十八

素因数分解:

2 2 × 7 1 × 17 1 × 29 1 × 233 1 × 379 1

素因数の和:669
約数の個数: 96
約数和(自身を含む): 2688940800
約数和(自身を除く): 1469950972

約数列:
[1, 2, 4, 7, 14, 17, 28, 29, 34, 58, 68, 116, 119, 203, 233, 238, 379, 406, 466, 476, 493, 758, 812, 932, 986, 1516, 1631, 1972, 2653, 3262, 3451, 3961, 5306, 6443, 6524, 6757, 6902, 7922, 10612, 10991, 12886, 13514, 13804, 15844, 21982, 25772, 27028, 27727, 43964, 45101, 47299, 55454, 76937, 88307, 90202, 94598, 110908, 114869, 153874, 176614, 180404, 186847, 189196, 229738, 307748, 353228, 373694, 459476, 618149, 747388, 804083, 1236298, 1307929, 1501219, 1608166, 2472596, 2560903, 2615858, 3002438, 3216332, 5121806, 5231716, 6004876, 10243612, 10508533, 17926321, 21017066, 35852642, 42034132, 43535351, 71705284, 87070702, 174141404, 304747457, 609494914, 1218989828]

約数ペア:
[(1, 1218989828), (2, 609494914), (4, 304747457), (7, 174141404), (14, 87070702), (17, 71705284), (28, 43535351), (29, 42034132), (34, 35852642), (58, 21017066), (68, 17926321), (116, 10508533), (119, 10243612), (203, 6004876), (233, 5231716), (238, 5121806), (379, 3216332), (406, 3002438), (466, 2615858), (476, 2560903), (493, 2472596), (758, 1608166), (812, 1501219), (932, 1307929), (986, 1236298), (1516, 804083), (1631, 747388), (1972, 618149), (2653, 459476), (3262, 373694), (3451, 353228), (3961, 307748), (5306, 229738), (6443, 189196), (6524, 186847), (6757, 180404), (6902, 176614), (7922, 153874), (10612, 114869), (10991, 110908), (12886, 94598), (13514, 90202), (13804, 88307), (15844, 76937), (21982, 55454), (25772, 47299), (27028, 45101), (27727, 43964)]

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