About the Number

1291320

1291319 ← → 1291321

2進数表記:100111011010000111000

漢数字表記:百二十九万千三百二十

素因数分解:

2 3 × 3 2 × 5 1 × 17 1 × 211 1

素因数の和:245
約数の個数: 96
約数和(自身を含む): 4464720
約数和(自身を除く): 3173400

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 211, 255, 306, 340, 360, 408, 422, 510, 612, 633, 680, 765, 844, 1020, 1055, 1224, 1266, 1530, 1688, 1899, 2040, 2110, 2532, 3060, 3165, 3587, 3798, 4220, 5064, 6120, 6330, 7174, 7596, 8440, 9495, 10761, 12660, 14348, 15192, 17935, 18990, 21522, 25320, 28696, 32283, 35870, 37980, 43044, 53805, 64566, 71740, 75960, 86088, 107610, 129132, 143480, 161415, 215220, 258264, 322830, 430440, 645660, 1291320]

約数ペア:
[(1, 1291320), (2, 645660), (3, 430440), (4, 322830), (5, 258264), (6, 215220), (8, 161415), (9, 143480), (10, 129132), (12, 107610), (15, 86088), (17, 75960), (18, 71740), (20, 64566), (24, 53805), (30, 43044), (34, 37980), (36, 35870), (40, 32283), (45, 28696), (51, 25320), (60, 21522), (68, 18990), (72, 17935), (85, 15192), (90, 14348), (102, 12660), (120, 10761), (136, 9495), (153, 8440), (170, 7596), (180, 7174), (204, 6330), (211, 6120), (255, 5064), (306, 4220), (340, 3798), (360, 3587), (408, 3165), (422, 3060), (510, 2532), (612, 2110), (633, 2040), (680, 1899), (765, 1688), (844, 1530), (1020, 1266), (1055, 1224)]

このpageの処理時間: 0.004289150238037109 seconds