About the Number

393472980

393472979 ← → 393472981

2進数表記:10111011100111110101111010100

漢数字表記:三億九千三百四十七万二千九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 1021 1 × 2141 1

素因数の和:3177
約数の個数: 72
約数和(自身を含む): 1195261704
約数和(自身を除く): 801788724

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1021, 2042, 2141, 3063, 4084, 4282, 5105, 6126, 6423, 8564, 9189, 10210, 10705, 12252, 12846, 15315, 18378, 19269, 20420, 21410, 25692, 30630, 32115, 36756, 38538, 42820, 45945, 61260, 64230, 77076, 91890, 96345, 128460, 183780, 192690, 385380, 2185961, 4371922, 6557883, 8743844, 10929805, 13115766, 19673649, 21859610, 26231532, 32789415, 39347298, 43719220, 65578830, 78694596, 98368245, 131157660, 196736490, 393472980]

約数ペア:
[(1, 393472980), (2, 196736490), (3, 131157660), (4, 98368245), (5, 78694596), (6, 65578830), (9, 43719220), (10, 39347298), (12, 32789415), (15, 26231532), (18, 21859610), (20, 19673649), (30, 13115766), (36, 10929805), (45, 8743844), (60, 6557883), (90, 4371922), (180, 2185961), (1021, 385380), (2042, 192690), (2141, 183780), (3063, 128460), (4084, 96345), (4282, 91890), (5105, 77076), (6126, 64230), (6423, 61260), (8564, 45945), (9189, 42820), (10210, 38538), (10705, 36756), (12252, 32115), (12846, 30630), (15315, 25692), (18378, 21410), (19269, 20420)]

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