21544440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:269

約数の個数: 128

約数和(自身を含む): 69984000

約数和(自身を除く): 48439560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 59, 60, 68, 85, 102, 118, 120, 136, 170, 177, 179, 204, 236, 255, 295, 340, 354, 358, 408, 472, 510, 537, 590, 680, 708, 716, 885, 895, 1003, 1020, 1074, 1180, 1416, 1432, 1770, 1790, 2006, 2040, 2148, 2360, 2685, 3009, 3043, 3540, 3580, 4012, 4296, 5015, 5370, 6018, 6086, 7080, 7160, 8024, 9129, 10030, 10561, 10740, 12036, 12172, 15045, 15215, 18258, 20060, 21122, 21480, 24072, 24344, 30090, 30430, 31683, 36516, 40120, 42244, 45645, 52805, 60180, 60860, 63366, 73032, 84488, 91290, 105610, 120360, 121720, 126732, 158415, 179537, 182580, 211220, 253464, 316830, 359074, 365160, 422440, 538611, 633660, 718148, 897685, 1077222, 1267320, 1436296, 1795370, 2154444, 2693055, 3590740, 4308888, 5386110, 7181480, 10772220, 21544440]

約数ペア:

[(1, 21544440), (2, 10772220), (3, 7181480), (4, 5386110), (5, 4308888), (6, 3590740), (8, 2693055), (10, 2154444), (12, 1795370), (15, 1436296), (17, 1267320), (20, 1077222), (24, 897685), (30, 718148), (34, 633660), (40, 538611), (51, 422440), (59, 365160), (60, 359074), (68, 316830), (85, 253464), (102, 211220), (118, 182580), (120, 179537), (136, 158415), (170, 126732), (177, 121720), (179, 120360), (204, 105610), (236, 91290), (255, 84488), (295, 73032), (340, 63366), (354, 60860), (358, 60180), (408, 52805), (472, 45645), (510, 42244), (537, 40120), (590, 36516), (680, 31683), (708, 30430), (716, 30090), (885, 24344), (895, 24072), (1003, 21480), (1020, 21122), (1074, 20060), (1180, 18258), (1416, 15215), (1432, 15045), (1770, 12172), (1790, 12036), (2006, 10740), (2040, 10561), (2148, 10030), (2360, 9129), (2685, 8024), (3009, 7160), (3043, 7080), (3540, 6086), (3580, 6018), (4012, 5370), (4296, 5015)]