18261540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:450

約数の個数: 144

約数和(自身を含む): 63213696

約数和(自身を除く): 44952156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 23, 30, 33, 36, 44, 45, 46, 55, 60, 66, 69, 90, 92, 99, 110, 115, 132, 138, 165, 180, 198, 207, 220, 230, 253, 276, 330, 345, 396, 401, 414, 460, 495, 506, 660, 690, 759, 802, 828, 990, 1012, 1035, 1203, 1265, 1380, 1518, 1604, 1980, 2005, 2070, 2277, 2406, 2530, 3036, 3609, 3795, 4010, 4140, 4411, 4554, 4812, 5060, 6015, 7218, 7590, 8020, 8822, 9108, 9223, 11385, 12030, 13233, 14436, 15180, 17644, 18045, 18446, 22055, 22770, 24060, 26466, 27669, 36090, 36892, 39699, 44110, 45540, 46115, 52932, 55338, 66165, 72180, 79398, 83007, 88220, 92230, 101453, 110676, 132330, 138345, 158796, 166014, 184460, 198495, 202906, 264660, 276690, 304359, 332028, 396990, 405812, 415035, 507265, 553380, 608718, 793980, 830070, 913077, 1014530, 1217436, 1521795, 1660140, 1826154, 2029060, 3043590, 3652308, 4565385, 6087180, 9130770, 18261540]

約数ペア:

[(1, 18261540), (2, 9130770), (3, 6087180), (4, 4565385), (5, 3652308), (6, 3043590), (9, 2029060), (10, 1826154), (11, 1660140), (12, 1521795), (15, 1217436), (18, 1014530), (20, 913077), (22, 830070), (23, 793980), (30, 608718), (33, 553380), (36, 507265), (44, 415035), (45, 405812), (46, 396990), (55, 332028), (60, 304359), (66, 276690), (69, 264660), (90, 202906), (92, 198495), (99, 184460), (110, 166014), (115, 158796), (132, 138345), (138, 132330), (165, 110676), (180, 101453), (198, 92230), (207, 88220), (220, 83007), (230, 79398), (253, 72180), (276, 66165), (330, 55338), (345, 52932), (396, 46115), (401, 45540), (414, 44110), (460, 39699), (495, 36892), (506, 36090), (660, 27669), (690, 26466), (759, 24060), (802, 22770), (828, 22055), (990, 18446), (1012, 18045), (1035, 17644), (1203, 15180), (1265, 14436), (1380, 13233), (1518, 12030), (1604, 11385), (1980, 9223), (2005, 9108), (2070, 8822), (2277, 8020), (2406, 7590), (2530, 7218), (3036, 6015), (3609, 5060), (3795, 4812), (4010, 4554), (4140, 4411)]