About the Number

138987008

138987007 ← → 138987009

2進数表記:1000010010001100011000000000

漢数字表記:一億三千八百九十八万七千八

素因数分解:

2 9 × 43 1 × 59 1 × 107 1

素因数の和:227
約数の個数: 80
約数和(自身を含む): 291677760
約数和(自身を除く): 152690752

約数列:
[1, 2, 4, 8, 16, 32, 43, 59, 64, 86, 107, 118, 128, 172, 214, 236, 256, 344, 428, 472, 512, 688, 856, 944, 1376, 1712, 1888, 2537, 2752, 3424, 3776, 4601, 5074, 5504, 6313, 6848, 7552, 9202, 10148, 11008, 12626, 13696, 15104, 18404, 20296, 22016, 25252, 27392, 30208, 36808, 40592, 50504, 54784, 73616, 81184, 101008, 147232, 162368, 202016, 271459, 294464, 324736, 404032, 542918, 588928, 649472, 808064, 1085836, 1177856, 1298944, 1616128, 2171672, 2355712, 3232256, 4343344, 8686688, 17373376, 34746752, 69493504, 138987008]

約数ペア:
[(1, 138987008), (2, 69493504), (4, 34746752), (8, 17373376), (16, 8686688), (32, 4343344), (43, 3232256), (59, 2355712), (64, 2171672), (86, 1616128), (107, 1298944), (118, 1177856), (128, 1085836), (172, 808064), (214, 649472), (236, 588928), (256, 542918), (344, 404032), (428, 324736), (472, 294464), (512, 271459), (688, 202016), (856, 162368), (944, 147232), (1376, 101008), (1712, 81184), (1888, 73616), (2537, 54784), (2752, 50504), (3424, 40592), (3776, 36808), (4601, 30208), (5074, 27392), (5504, 25252), (6313, 22016), (6848, 20296), (7552, 18404), (9202, 15104), (10148, 13696), (11008, 12626)]

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