1216391880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12979}}^1$

素因数の和:13075

約数の個数: 128

約数和(自身を含む): 4037299200

約数和(自身を除く): 2820907320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 71, 88, 110, 120, 132, 142, 165, 213, 220, 264, 284, 330, 355, 426, 440, 568, 660, 710, 781, 852, 1065, 1320, 1420, 1562, 1704, 2130, 2343, 2840, 3124, 3905, 4260, 4686, 6248, 7810, 8520, 9372, 11715, 12979, 15620, 18744, 23430, 25958, 31240, 38937, 46860, 51916, 64895, 77874, 93720, 103832, 129790, 142769, 155748, 194685, 259580, 285538, 311496, 389370, 428307, 519160, 571076, 713845, 778740, 856614, 921509, 1142152, 1427690, 1557480, 1713228, 1843018, 2141535, 2764527, 2855380, 3426456, 3686036, 4283070, 4607545, 5529054, 5710760, 7372072, 8566140, 9215090, 10136599, 11058108, 13822635, 17132280, 18430180, 20273198, 22116216, 27645270, 30409797, 36860360, 40546396, 50682995, 55290540, 60819594, 81092792, 101365990, 110581080, 121639188, 152048985, 202731980, 243278376, 304097970, 405463960, 608195940, 1216391880]

約数ペア:

[(1, 1216391880), (2, 608195940), (3, 405463960), (4, 304097970), (5, 243278376), (6, 202731980), (8, 152048985), (10, 121639188), (11, 110581080), (12, 101365990), (15, 81092792), (20, 60819594), (22, 55290540), (24, 50682995), (30, 40546396), (33, 36860360), (40, 30409797), (44, 27645270), (55, 22116216), (60, 20273198), (66, 18430180), (71, 17132280), (88, 13822635), (110, 11058108), (120, 10136599), (132, 9215090), (142, 8566140), (165, 7372072), (213, 5710760), (220, 5529054), (264, 4607545), (284, 4283070), (330, 3686036), (355, 3426456), (426, 2855380), (440, 2764527), (568, 2141535), (660, 1843018), (710, 1713228), (781, 1557480), (852, 1427690), (1065, 1142152), (1320, 921509), (1420, 856614), (1562, 778740), (1704, 713845), (2130, 571076), (2343, 519160), (2840, 428307), (3124, 389370), (3905, 311496), (4260, 285538), (4686, 259580), (6248, 194685), (7810, 155748), (8520, 142769), (9372, 129790), (11715, 103832), (12979, 93720), (15620, 77874), (18744, 64895), (23430, 51916), (25958, 46860), (31240, 38937)]