18145620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:531

約数の個数: 120

約数和(自身を含む): 59520384

約数和(自身を除く): 41374764

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, 180, 207, 230, 270, 276, 324, 345, 405, 414, 460, 487, 540, 621, 690, 810, 828, 974, 1035, 1242, 1380, 1461, 1620, 1863, 1948, 2070, 2435, 2484, 2922, 3105, 3726, 4140, 4383, 4870, 5844, 6210, 7305, 7452, 8766, 9315, 9740, 11201, 12420, 13149, 14610, 17532, 18630, 21915, 22402, 26298, 29220, 33603, 37260, 39447, 43830, 44804, 52596, 56005, 65745, 67206, 78894, 87660, 100809, 112010, 131490, 134412, 157788, 168015, 197235, 201618, 224020, 262980, 302427, 336030, 394470, 403236, 504045, 604854, 672060, 788940, 907281, 1008090, 1209708, 1512135, 1814562, 2016180, 3024270, 3629124, 4536405, 6048540, 9072810, 18145620]

約数ペア:

[(1, 18145620), (2, 9072810), (3, 6048540), (4, 4536405), (5, 3629124), (6, 3024270), (9, 2016180), (10, 1814562), (12, 1512135), (15, 1209708), (18, 1008090), (20, 907281), (23, 788940), (27, 672060), (30, 604854), (36, 504045), (45, 403236), (46, 394470), (54, 336030), (60, 302427), (69, 262980), (81, 224020), (90, 201618), (92, 197235), (108, 168015), (115, 157788), (135, 134412), (138, 131490), (162, 112010), (180, 100809), (207, 87660), (230, 78894), (270, 67206), (276, 65745), (324, 56005), (345, 52596), (405, 44804), (414, 43830), (460, 39447), (487, 37260), (540, 33603), (621, 29220), (690, 26298), (810, 22402), (828, 21915), (974, 18630), (1035, 17532), (1242, 14610), (1380, 13149), (1461, 12420), (1620, 11201), (1863, 9740), (1948, 9315), (2070, 8766), (2435, 7452), (2484, 7305), (2922, 6210), (3105, 5844), (3726, 4870), (4140, 4383)]