81594540

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 260752128

約数和(自身を除く): 179157588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 103, 108, 135, 162, 163, 180, 206, 243, 270, 309, 324, 326, 405, 412, 486, 489, 515, 540, 618, 652, 810, 815, 927, 972, 978, 1030, 1215, 1236, 1467, 1545, 1620, 1630, 1854, 1956, 2060, 2430, 2445, 2781, 2934, 3090, 3260, 3708, 4401, 4635, 4860, 4890, 5562, 5868, 6180, 7335, 8343, 8802, 9270, 9780, 11124, 13203, 13905, 14670, 16686, 16789, 17604, 18540, 22005, 25029, 26406, 27810, 29340, 33372, 33578, 39609, 41715, 44010, 50058, 50367, 52812, 55620, 66015, 67156, 79218, 83430, 83945, 88020, 100116, 100734, 125145, 132030, 151101, 158436, 166860, 167890, 198045, 201468, 250290, 251835, 264060, 302202, 335780, 396090, 453303, 500580, 503670, 604404, 755505, 792180, 906606, 1007340, 1359909, 1511010, 1813212, 2266515, 2719818, 3022020, 4079727, 4533030, 5439636, 6799545, 8159454, 9066060, 13599090, 16318908, 20398635, 27198180, 40797270, 81594540]

約数ペア:

[(1, 81594540), (2, 40797270), (3, 27198180), (4, 20398635), (5, 16318908), (6, 13599090), (9, 9066060), (10, 8159454), (12, 6799545), (15, 5439636), (18, 4533030), (20, 4079727), (27, 3022020), (30, 2719818), (36, 2266515), (45, 1813212), (54, 1511010), (60, 1359909), (81, 1007340), (90, 906606), (103, 792180), (108, 755505), (135, 604404), (162, 503670), (163, 500580), (180, 453303), (206, 396090), (243, 335780), (270, 302202), (309, 264060), (324, 251835), (326, 250290), (405, 201468), (412, 198045), (486, 167890), (489, 166860), (515, 158436), (540, 151101), (618, 132030), (652, 125145), (810, 100734), (815, 100116), (927, 88020), (972, 83945), (978, 83430), (1030, 79218), (1215, 67156), (1236, 66015), (1467, 55620), (1545, 52812), (1620, 50367), (1630, 50058), (1854, 44010), (1956, 41715), (2060, 39609), (2430, 33578), (2445, 33372), (2781, 29340), (2934, 27810), (3090, 26406), (3260, 25029), (3708, 22005), (4401, 18540), (4635, 17604), (4860, 16789), (4890, 16686), (5562, 14670), (5868, 13905), (6180, 13203), (7335, 11124), (8343, 9780), (8802, 9270)]