18220140

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 60173568

約数和(自身を除く): 41953428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 81, 90, 92, 108, 115, 135, 138, 162, 163, 180, 207, 230, 243, 270, 276, 324, 326, 345, 405, 414, 460, 486, 489, 540, 621, 652, 690, 810, 815, 828, 972, 978, 1035, 1215, 1242, 1380, 1467, 1620, 1630, 1863, 1956, 2070, 2430, 2445, 2484, 2934, 3105, 3260, 3726, 3749, 4140, 4401, 4860, 4890, 5589, 5868, 6210, 7335, 7452, 7498, 8802, 9315, 9780, 11178, 11247, 12420, 13203, 14670, 14996, 17604, 18630, 18745, 22005, 22356, 22494, 26406, 27945, 29340, 33741, 37260, 37490, 39609, 44010, 44988, 52812, 55890, 56235, 66015, 67482, 74980, 79218, 88020, 101223, 111780, 112470, 132030, 134964, 158436, 168705, 198045, 202446, 224940, 264060, 303669, 337410, 396090, 404892, 506115, 607338, 674820, 792180, 911007, 1012230, 1214676, 1518345, 1822014, 2024460, 3036690, 3644028, 4555035, 6073380, 9110070, 18220140]

約数ペア:

[(1, 18220140), (2, 9110070), (3, 6073380), (4, 4555035), (5, 3644028), (6, 3036690), (9, 2024460), (10, 1822014), (12, 1518345), (15, 1214676), (18, 1012230), (20, 911007), (23, 792180), (27, 674820), (30, 607338), (36, 506115), (45, 404892), (46, 396090), (54, 337410), (60, 303669), (69, 264060), (81, 224940), (90, 202446), (92, 198045), (108, 168705), (115, 158436), (135, 134964), (138, 132030), (162, 112470), (163, 111780), (180, 101223), (207, 88020), (230, 79218), (243, 74980), (270, 67482), (276, 66015), (324, 56235), (326, 55890), (345, 52812), (405, 44988), (414, 44010), (460, 39609), (486, 37490), (489, 37260), (540, 33741), (621, 29340), (652, 27945), (690, 26406), (810, 22494), (815, 22356), (828, 22005), (972, 18745), (978, 18630), (1035, 17604), (1215, 14996), (1242, 14670), (1380, 13203), (1467, 12420), (1620, 11247), (1630, 11178), (1863, 9780), (1956, 9315), (2070, 8802), (2430, 7498), (2445, 7452), (2484, 7335), (2934, 6210), (3105, 5868), (3260, 5589), (3726, 4890), (3749, 4860), (4140, 4401)]