9871840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:176

約数の個数: 96

約数和(自身を含む): 26127360

約数和(自身を除く): 16255520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 71, 79, 80, 88, 110, 142, 158, 160, 176, 220, 284, 316, 352, 355, 395, 440, 568, 632, 710, 781, 790, 869, 880, 1136, 1264, 1420, 1562, 1580, 1738, 1760, 2272, 2528, 2840, 3124, 3160, 3476, 3905, 4345, 5609, 5680, 6248, 6320, 6952, 7810, 8690, 11218, 11360, 12496, 12640, 13904, 15620, 17380, 22436, 24992, 27808, 28045, 31240, 34760, 44872, 56090, 61699, 62480, 69520, 89744, 112180, 123398, 124960, 139040, 179488, 224360, 246796, 308495, 448720, 493592, 616990, 897440, 987184, 1233980, 1974368, 2467960, 4935920, 9871840]

約数ペア:

[(1, 9871840), (2, 4935920), (4, 2467960), (5, 1974368), (8, 1233980), (10, 987184), (11, 897440), (16, 616990), (20, 493592), (22, 448720), (32, 308495), (40, 246796), (44, 224360), (55, 179488), (71, 139040), (79, 124960), (80, 123398), (88, 112180), (110, 89744), (142, 69520), (158, 62480), (160, 61699), (176, 56090), (220, 44872), (284, 34760), (316, 31240), (352, 28045), (355, 27808), (395, 24992), (440, 22436), (568, 17380), (632, 15620), (710, 13904), (781, 12640), (790, 12496), (869, 11360), (880, 11218), (1136, 8690), (1264, 7810), (1420, 6952), (1562, 6320), (1580, 6248), (1738, 5680), (1760, 5609), (2272, 4345), (2528, 3905), (2840, 3476), (3124, 3160)]