720256212

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{631}}^1$

素因数の和:931

約数の個数: 120

約数和(自身を含む): 2038437632

約数和(自身を除く): 1318181420

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 271, 324, 351, 468, 542, 631, 702, 813, 1053, 1084, 1262, 1404, 1626, 1893, 2106, 2439, 2524, 3252, 3523, 3786, 4212, 4878, 5679, 7046, 7317, 7572, 8203, 9756, 10569, 11358, 14092, 14634, 16406, 17037, 21138, 21951, 22716, 24609, 29268, 31707, 32812, 34074, 42276, 43902, 49218, 51111, 63414, 68148, 73827, 87804, 95121, 98436, 102222, 126828, 147654, 171001, 190242, 204444, 221481, 285363, 295308, 342002, 380484, 442962, 513003, 570726, 664443, 684004, 885924, 1026006, 1141452, 1328886, 1539009, 2052012, 2223013, 2657772, 3078018, 4446026, 4617027, 6156036, 6669039, 8892052, 9234054, 13338078, 13851081, 18468108, 20007117, 26676156, 27702162, 40014234, 55404324, 60021351, 80028468, 120042702, 180064053, 240085404, 360128106, 720256212]

約数ペア:

[(1, 720256212), (2, 360128106), (3, 240085404), (4, 180064053), (6, 120042702), (9, 80028468), (12, 60021351), (13, 55404324), (18, 40014234), (26, 27702162), (27, 26676156), (36, 20007117), (39, 18468108), (52, 13851081), (54, 13338078), (78, 9234054), (81, 8892052), (108, 6669039), (117, 6156036), (156, 4617027), (162, 4446026), (234, 3078018), (271, 2657772), (324, 2223013), (351, 2052012), (468, 1539009), (542, 1328886), (631, 1141452), (702, 1026006), (813, 885924), (1053, 684004), (1084, 664443), (1262, 570726), (1404, 513003), (1626, 442962), (1893, 380484), (2106, 342002), (2439, 295308), (2524, 285363), (3252, 221481), (3523, 204444), (3786, 190242), (4212, 171001), (4878, 147654), (5679, 126828), (7046, 102222), (7317, 98436), (7572, 95121), (8203, 87804), (9756, 73827), (10569, 68148), (11358, 63414), (14092, 51111), (14634, 49218), (16406, 43902), (17037, 42276), (21138, 34074), (21951, 32812), (22716, 31707), (24609, 29268)]