About the Number
390400080
2進数表記:10111010001010000100001010000
漢数字表記:三億九千四十万八十
素因数分解:
素因数の和:232404
約数の個数: 80
約数和(自身を含む): 1383137664
約数和(自身を除く): 992737584
約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 232381, 464762, 697143, 929524, 1161905, 1394286, 1626667, 1859048, 2323810, 2788572, 3253334, 3485715, 3718096, 4647620, 4880001, 5577144, 6506668, 6971430, 8133335, 9295240, 9760002, 11154288, 13013336, 13942860, 16266670, 18590480, 19520004, 24400005, 26026672, 27885720, 32533340, 39040008, 48800010, 55771440, 65066680, 78080016, 97600020, 130133360, 195200040, 390400080]
約数ペア:
[(1, 390400080), (2, 195200040), (3, 130133360), (4, 97600020), (5, 78080016), (6, 65066680), (7, 55771440), (8, 48800010), (10, 39040008), (12, 32533340), (14, 27885720), (15, 26026672), (16, 24400005), (20, 19520004), (21, 18590480), (24, 16266670), (28, 13942860), (30, 13013336), (35, 11154288), (40, 9760002), (42, 9295240), (48, 8133335), (56, 6971430), (60, 6506668), (70, 5577144), (80, 4880001), (84, 4647620), (105, 3718096), (112, 3485715), (120, 3253334), (140, 2788572), (168, 2323810), (210, 1859048), (240, 1626667), (280, 1394286), (336, 1161905), (420, 929524), (560, 697143), (840, 464762), (1680, 232381)]このpageの処理時間: 0.013616800308227539 seconds