19740056

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 44513280

約数和(自身を除く): 24773224

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 83, 124, 137, 166, 217, 248, 274, 332, 434, 548, 581, 664, 868, 959, 1096, 1162, 1736, 1918, 2324, 2573, 3836, 4247, 4648, 5146, 7672, 8494, 10292, 11371, 16988, 18011, 20584, 22742, 29729, 33976, 36022, 45484, 59458, 72044, 79597, 90968, 118916, 144088, 159194, 237832, 318388, 352501, 636776, 705002, 1410004, 2467507, 2820008, 4935014, 9870028, 19740056]

約数ペア:

[(1, 19740056), (2, 9870028), (4, 4935014), (7, 2820008), (8, 2467507), (14, 1410004), (28, 705002), (31, 636776), (56, 352501), (62, 318388), (83, 237832), (124, 159194), (137, 144088), (166, 118916), (217, 90968), (248, 79597), (274, 72044), (332, 59458), (434, 45484), (548, 36022), (581, 33976), (664, 29729), (868, 22742), (959, 20584), (1096, 18011), (1162, 16988), (1736, 11371), (1918, 10292), (2324, 8494), (2573, 7672), (3836, 5146), (4247, 4648)]