281054384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^3\times {\mathrm{197}}^1$

素因数の和:275

約数の個数: 80

約数和(自身を含む): 622147680

約数和(自身を除く): 341093296

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 197, 208, 247, 304, 361, 394, 494, 722, 788, 988, 1444, 1576, 1976, 2561, 2888, 3152, 3743, 3952, 4693, 5122, 5776, 6859, 7486, 9386, 10244, 13718, 14972, 18772, 20488, 27436, 29944, 37544, 40976, 48659, 54872, 59888, 71117, 75088, 89167, 97318, 109744, 142234, 178334, 194636, 284468, 356668, 389272, 568936, 713336, 778544, 924521, 1137872, 1351223, 1426672, 1849042, 2702446, 3698084, 5404892, 7396168, 10809784, 14792336, 17565899, 21619568, 35131798, 70263596, 140527192, 281054384]

約数ペア:

[(1, 281054384), (2, 140527192), (4, 70263596), (8, 35131798), (13, 21619568), (16, 17565899), (19, 14792336), (26, 10809784), (38, 7396168), (52, 5404892), (76, 3698084), (104, 2702446), (152, 1849042), (197, 1426672), (208, 1351223), (247, 1137872), (304, 924521), (361, 778544), (394, 713336), (494, 568936), (722, 389272), (788, 356668), (988, 284468), (1444, 194636), (1576, 178334), (1976, 142234), (2561, 109744), (2888, 97318), (3152, 89167), (3743, 75088), (3952, 71117), (4693, 59888), (5122, 54872), (5776, 48659), (6859, 40976), (7486, 37544), (9386, 29944), (10244, 27436), (13718, 20488), (14972, 18772)]