639372972

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{7937}}^1$

素因数の和:8095

約数の個数: 72

約数和(自身を含む): 1748328624

約数和(自身を除く): 1108955652

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 137, 147, 196, 274, 294, 411, 548, 588, 822, 959, 1644, 1918, 2877, 3836, 5754, 6713, 7937, 11508, 13426, 15874, 20139, 23811, 26852, 31748, 40278, 47622, 55559, 80556, 95244, 111118, 166677, 222236, 333354, 388913, 666708, 777826, 1087369, 1166739, 1555652, 2174738, 2333478, 3262107, 4349476, 4666956, 6524214, 7611583, 13048428, 15223166, 22834749, 30446332, 45669498, 53281081, 91338996, 106562162, 159843243, 213124324, 319686486, 639372972]

約数ペア:

[(1, 639372972), (2, 319686486), (3, 213124324), (4, 159843243), (6, 106562162), (7, 91338996), (12, 53281081), (14, 45669498), (21, 30446332), (28, 22834749), (42, 15223166), (49, 13048428), (84, 7611583), (98, 6524214), (137, 4666956), (147, 4349476), (196, 3262107), (274, 2333478), (294, 2174738), (411, 1555652), (548, 1166739), (588, 1087369), (822, 777826), (959, 666708), (1644, 388913), (1918, 333354), (2877, 222236), (3836, 166677), (5754, 111118), (6713, 95244), (7937, 80556), (11508, 55559), (13426, 47622), (15874, 40278), (20139, 31748), (23811, 26852)]