About the Number

308381220

308381219 ← → 308381221

2進数表記:10010011000011000011000100100

漢数字表記:三億八百三十八万千二百二十

素因数分解:

2 2 × 3 2 × 5 1 × 7 1 × 244747 1

素因数の和:244769
約数の個数: 72
約数和(自身を含む): 1069059264
約数和(自身を除く): 760678044

約数列:
[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 244747, 489494, 734241, 978988, 1223735, 1468482, 1713229, 2202723, 2447470, 2936964, 3426458, 3671205, 4405446, 4894940, 5139687, 6852916, 7342410, 8566145, 8810892, 10279374, 11013615, 14684820, 15419061, 17132290, 20558748, 22027230, 25698435, 30838122, 34264580, 44054460, 51396870, 61676244, 77095305, 102793740, 154190610, 308381220]

約数ペア:
[(1, 308381220), (2, 154190610), (3, 102793740), (4, 77095305), (5, 61676244), (6, 51396870), (7, 44054460), (9, 34264580), (10, 30838122), (12, 25698435), (14, 22027230), (15, 20558748), (18, 17132290), (20, 15419061), (21, 14684820), (28, 11013615), (30, 10279374), (35, 8810892), (36, 8566145), (42, 7342410), (45, 6852916), (60, 5139687), (63, 4894940), (70, 4405446), (84, 3671205), (90, 3426458), (105, 2936964), (126, 2447470), (140, 2202723), (180, 1713229), (210, 1468482), (252, 1223735), (315, 978988), (420, 734241), (630, 489494), (1260, 244747)]

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