About the Number

81315250

81315249 ← → 81315251

2進数表記:100110110001100010110110010

漢数字表記:八千百三十一万五千二百五十

素因数分解:

2 1 × 5 3 × 17 1 × 19 2 × 53 1

素因数の和:125
約数の個数: 96
約数和(自身を含む): 173315376
約数和(自身を除く): 92000126

約数列:
[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 53, 85, 95, 106, 125, 170, 190, 250, 265, 323, 361, 425, 475, 530, 646, 722, 850, 901, 950, 1007, 1325, 1615, 1802, 1805, 2014, 2125, 2375, 2650, 3230, 3610, 4250, 4505, 4750, 5035, 6137, 6625, 8075, 9010, 9025, 10070, 12274, 13250, 16150, 17119, 18050, 19133, 22525, 25175, 30685, 34238, 38266, 40375, 45050, 45125, 50350, 61370, 80750, 85595, 90250, 95665, 112625, 125875, 153425, 171190, 191330, 225250, 251750, 306850, 325261, 427975, 478325, 650522, 767125, 855950, 956650, 1534250, 1626305, 2139875, 2391625, 3252610, 4279750, 4783250, 8131525, 16263050, 40657625, 81315250]

約数ペア:
[(1, 81315250), (2, 40657625), (5, 16263050), (10, 8131525), (17, 4783250), (19, 4279750), (25, 3252610), (34, 2391625), (38, 2139875), (50, 1626305), (53, 1534250), (85, 956650), (95, 855950), (106, 767125), (125, 650522), (170, 478325), (190, 427975), (250, 325261), (265, 306850), (323, 251750), (361, 225250), (425, 191330), (475, 171190), (530, 153425), (646, 125875), (722, 112625), (850, 95665), (901, 90250), (950, 85595), (1007, 80750), (1325, 61370), (1615, 50350), (1802, 45125), (1805, 45050), (2014, 40375), (2125, 38266), (2375, 34238), (2650, 30685), (3230, 25175), (3610, 22525), (4250, 19133), (4505, 18050), (4750, 17119), (5035, 16150), (6137, 13250), (6625, 12274), (8075, 10070), (9010, 9025)]

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