About the Number
81660520
2進数表記:100110111100000101001101000
漢数字表記:八千百六十六万五百二十
素因数分解:
素因数の和:199
約数の個数: 128
約数和(自身を含む): 208202400
約数和(自身を除く): 126541880
約数列:
[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 41, 58, 68, 82, 85, 101, 116, 136, 145, 164, 170, 202, 205, 232, 290, 328, 340, 404, 410, 493, 505, 580, 680, 697, 808, 820, 986, 1010, 1160, 1189, 1394, 1640, 1717, 1972, 2020, 2378, 2465, 2788, 2929, 3434, 3485, 3944, 4040, 4141, 4756, 4930, 5576, 5858, 5945, 6868, 6970, 8282, 8585, 9512, 9860, 11716, 11890, 13736, 13940, 14645, 16564, 17170, 19720, 20213, 20705, 23432, 23780, 27880, 29290, 33128, 34340, 40426, 41410, 47560, 49793, 58580, 68680, 70397, 80852, 82820, 99586, 101065, 117160, 120089, 140794, 161704, 165640, 199172, 202130, 240178, 248965, 281588, 351985, 398344, 404260, 480356, 497930, 563176, 600445, 703970, 808520, 960712, 995860, 1200890, 1407940, 1991720, 2041513, 2401780, 2815880, 4083026, 4803560, 8166052, 10207565, 16332104, 20415130, 40830260, 81660520]
約数ペア:
[(1, 81660520), (2, 40830260), (4, 20415130), (5, 16332104), (8, 10207565), (10, 8166052), (17, 4803560), (20, 4083026), (29, 2815880), (34, 2401780), (40, 2041513), (41, 1991720), (58, 1407940), (68, 1200890), (82, 995860), (85, 960712), (101, 808520), (116, 703970), (136, 600445), (145, 563176), (164, 497930), (170, 480356), (202, 404260), (205, 398344), (232, 351985), (290, 281588), (328, 248965), (340, 240178), (404, 202130), (410, 199172), (493, 165640), (505, 161704), (580, 140794), (680, 120089), (697, 117160), (808, 101065), (820, 99586), (986, 82820), (1010, 80852), (1160, 70397), (1189, 68680), (1394, 58580), (1640, 49793), (1717, 47560), (1972, 41410), (2020, 40426), (2378, 34340), (2465, 33128), (2788, 29290), (2929, 27880), (3434, 23780), (3485, 23432), (3944, 20705), (4040, 20213), (4141, 19720), (4756, 17170), (4930, 16564), (5576, 14645), (5858, 13940), (5945, 13736), (6868, 11890), (6970, 11716), (8282, 9860), (8585, 9512)]このpageの処理時間: 0.006639242172241211 seconds