18644040

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{283}}^1$

素因数の和:364

約数の個数: 128

約数和(自身を含む): 63388800

約数和(自身を除く): 44744760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 90, 108, 120, 122, 135, 180, 183, 216, 244, 270, 283, 305, 360, 366, 488, 540, 549, 566, 610, 732, 849, 915, 1080, 1098, 1132, 1220, 1415, 1464, 1647, 1698, 1830, 2196, 2264, 2440, 2547, 2745, 2830, 3294, 3396, 3660, 4245, 4392, 5094, 5490, 5660, 6588, 6792, 7320, 7641, 8235, 8490, 10188, 10980, 11320, 12735, 13176, 15282, 16470, 16980, 17263, 20376, 21960, 25470, 30564, 32940, 33960, 34526, 38205, 50940, 51789, 61128, 65880, 69052, 76410, 86315, 101880, 103578, 138104, 152820, 155367, 172630, 207156, 258945, 305640, 310734, 345260, 414312, 466101, 517890, 621468, 690520, 776835, 932202, 1035780, 1242936, 1553670, 1864404, 2071560, 2330505, 3107340, 3728808, 4661010, 6214680, 9322020, 18644040]

約数ペア:

[(1, 18644040), (2, 9322020), (3, 6214680), (4, 4661010), (5, 3728808), (6, 3107340), (8, 2330505), (9, 2071560), (10, 1864404), (12, 1553670), (15, 1242936), (18, 1035780), (20, 932202), (24, 776835), (27, 690520), (30, 621468), (36, 517890), (40, 466101), (45, 414312), (54, 345260), (60, 310734), (61, 305640), (72, 258945), (90, 207156), (108, 172630), (120, 155367), (122, 152820), (135, 138104), (180, 103578), (183, 101880), (216, 86315), (244, 76410), (270, 69052), (283, 65880), (305, 61128), (360, 51789), (366, 50940), (488, 38205), (540, 34526), (549, 33960), (566, 32940), (610, 30564), (732, 25470), (849, 21960), (915, 20376), (1080, 17263), (1098, 16980), (1132, 16470), (1220, 15282), (1415, 13176), (1464, 12735), (1647, 11320), (1698, 10980), (1830, 10188), (2196, 8490), (2264, 8235), (2440, 7641), (2547, 7320), (2745, 6792), (2830, 6588), (3294, 5660), (3396, 5490), (3660, 5094), (4245, 4392)]