18404820

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{541}}^1$

素因数の和:572

約数の個数: 144

約数和(自身を含む): 66288768

約数和(自身を除く): 47883948

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 243, 252, 270, 315, 324, 378, 405, 420, 486, 540, 541, 567, 630, 756, 810, 945, 972, 1082, 1134, 1215, 1260, 1620, 1623, 1701, 1890, 2164, 2268, 2430, 2705, 2835, 3246, 3402, 3780, 3787, 4860, 4869, 5410, 5670, 6492, 6804, 7574, 8115, 8505, 9738, 10820, 11340, 11361, 14607, 15148, 16230, 17010, 18935, 19476, 22722, 24345, 29214, 32460, 34020, 34083, 37870, 43821, 45444, 48690, 56805, 58428, 68166, 73035, 75740, 87642, 97380, 102249, 113610, 131463, 136332, 146070, 170415, 175284, 204498, 219105, 227220, 262926, 292140, 306747, 340830, 408996, 438210, 511245, 525852, 613494, 657315, 681660, 876420, 920241, 1022490, 1226988, 1314630, 1533735, 1840482, 2044980, 2629260, 3067470, 3680964, 4601205, 6134940, 9202410, 18404820]

約数ペア:

[(1, 18404820), (2, 9202410), (3, 6134940), (4, 4601205), (5, 3680964), (6, 3067470), (7, 2629260), (9, 2044980), (10, 1840482), (12, 1533735), (14, 1314630), (15, 1226988), (18, 1022490), (20, 920241), (21, 876420), (27, 681660), (28, 657315), (30, 613494), (35, 525852), (36, 511245), (42, 438210), (45, 408996), (54, 340830), (60, 306747), (63, 292140), (70, 262926), (81, 227220), (84, 219105), (90, 204498), (105, 175284), (108, 170415), (126, 146070), (135, 136332), (140, 131463), (162, 113610), (180, 102249), (189, 97380), (210, 87642), (243, 75740), (252, 73035), (270, 68166), (315, 58428), (324, 56805), (378, 48690), (405, 45444), (420, 43821), (486, 37870), (540, 34083), (541, 34020), (567, 32460), (630, 29214), (756, 24345), (810, 22722), (945, 19476), (972, 18935), (1082, 17010), (1134, 16230), (1215, 15148), (1260, 14607), (1620, 11361), (1623, 11340), (1701, 10820), (1890, 9738), (2164, 8505), (2268, 8115), (2430, 7574), (2705, 6804), (2835, 6492), (3246, 5670), (3402, 5410), (3780, 4869), (3787, 4860)]