About the Number

128442480

128442479 ← → 128442481

2進数表記:111101001111110000001110000

漢数字表記:一億二千八百四十四万二千四百八十

素因数分解:

2 4 × 3 1 × 5 1 × 17 1 × 31481 1

素因数の和:31514
約数の個数: 80
約数和(自身を含む): 421606944
約数和(自身を除く): 293164464

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 31481, 62962, 94443, 125924, 157405, 188886, 251848, 314810, 377772, 472215, 503696, 535177, 629620, 755544, 944430, 1070354, 1259240, 1511088, 1605531, 1888860, 2140708, 2518480, 2675885, 3211062, 3777720, 4281416, 5351770, 6422124, 7555440, 8027655, 8562832, 10703540, 12844248, 16055310, 21407080, 25688496, 32110620, 42814160, 64221240, 128442480]

約数ペア:
[(1, 128442480), (2, 64221240), (3, 42814160), (4, 32110620), (5, 25688496), (6, 21407080), (8, 16055310), (10, 12844248), (12, 10703540), (15, 8562832), (16, 8027655), (17, 7555440), (20, 6422124), (24, 5351770), (30, 4281416), (34, 3777720), (40, 3211062), (48, 2675885), (51, 2518480), (60, 2140708), (68, 1888860), (80, 1605531), (85, 1511088), (102, 1259240), (120, 1070354), (136, 944430), (170, 755544), (204, 629620), (240, 535177), (255, 503696), (272, 472215), (340, 377772), (408, 314810), (510, 251848), (680, 188886), (816, 157405), (1020, 125924), (1360, 94443), (2040, 62962), (4080, 31481)]

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