About the Number

87984780

87984779 ← → 87984781

2進数表記:101001111101000101010001100

漢数字表記:八千七百九十八万四千七百八十

素因数分解:

2 2 × 3 1 × 5 1 × 13 2 × 8677 1

素因数の和:8715
約数の個数: 72
約数和(自身を含む): 266796432
約数和(自身を除く): 178811652

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3380, 5070, 8677, 10140, 17354, 26031, 34708, 43385, 52062, 86770, 104124, 112801, 130155, 173540, 225602, 260310, 338403, 451204, 520620, 564005, 676806, 1128010, 1353612, 1466413, 1692015, 2256020, 2932826, 3384030, 4399239, 5865652, 6768060, 7332065, 8798478, 14664130, 17596956, 21996195, 29328260, 43992390, 87984780]

約数ペア:
[(1, 87984780), (2, 43992390), (3, 29328260), (4, 21996195), (5, 17596956), (6, 14664130), (10, 8798478), (12, 7332065), (13, 6768060), (15, 5865652), (20, 4399239), (26, 3384030), (30, 2932826), (39, 2256020), (52, 1692015), (60, 1466413), (65, 1353612), (78, 1128010), (130, 676806), (156, 564005), (169, 520620), (195, 451204), (260, 338403), (338, 260310), (390, 225602), (507, 173540), (676, 130155), (780, 112801), (845, 104124), (1014, 86770), (1690, 52062), (2028, 43385), (2535, 34708), (3380, 26031), (5070, 17354), (8677, 10140)]

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