81888898

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:264

約数の個数: 96

約数和(自身を含む): 172368000

約数和(自身を除く): 90479102

約数列:

[1, 2, 7, 13, 14, 17, 19, 26, 34, 38, 49, 91, 98, 119, 133, 182, 199, 221, 238, 247, 266, 323, 398, 442, 494, 637, 646, 833, 931, 1274, 1393, 1547, 1666, 1729, 1862, 2261, 2587, 2786, 3094, 3383, 3458, 3781, 4199, 4522, 5174, 6766, 7562, 8398, 9751, 10829, 12103, 15827, 18109, 19502, 21658, 23681, 24206, 26467, 29393, 31654, 36218, 43979, 47362, 49153, 52934, 58786, 64277, 87958, 98306, 126763, 128554, 165767, 185269, 205751, 253526, 307853, 331534, 344071, 370538, 411502, 449939, 615706, 688142, 835601, 899878, 1671202, 2154971, 2408497, 3149573, 4309942, 4816994, 5849207, 6299146, 11698414, 40944449, 81888898]

約数ペア:

[(1, 81888898), (2, 40944449), (7, 11698414), (13, 6299146), (14, 5849207), (17, 4816994), (19, 4309942), (26, 3149573), (34, 2408497), (38, 2154971), (49, 1671202), (91, 899878), (98, 835601), (119, 688142), (133, 615706), (182, 449939), (199, 411502), (221, 370538), (238, 344071), (247, 331534), (266, 307853), (323, 253526), (398, 205751), (442, 185269), (494, 165767), (637, 128554), (646, 126763), (833, 98306), (931, 87958), (1274, 64277), (1393, 58786), (1547, 52934), (1666, 49153), (1729, 47362), (1862, 43979), (2261, 36218), (2587, 31654), (2786, 29393), (3094, 26467), (3383, 24206), (3458, 23681), (3781, 21658), (4199, 19502), (4522, 18109), (5174, 15827), (6766, 12103), (7562, 10829), (8398, 9751)]