71938256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:316

約数の個数: 80

約数和(自身を含む): 160406400

約数和(自身を除く): 88468144

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 109, 152, 167, 208, 218, 247, 304, 334, 436, 494, 668, 872, 988, 1336, 1417, 1744, 1976, 2071, 2171, 2672, 2834, 3173, 3952, 4142, 4342, 5668, 6346, 8284, 8684, 11336, 12692, 16568, 17368, 18203, 22672, 25384, 26923, 33136, 34736, 36406, 41249, 50768, 53846, 72812, 82498, 107692, 145624, 164996, 215384, 236639, 291248, 329992, 345857, 430768, 473278, 659984, 691714, 946556, 1383428, 1893112, 2766856, 3786224, 4496141, 5533712, 8992282, 17984564, 35969128, 71938256]

約数ペア:

[(1, 71938256), (2, 35969128), (4, 17984564), (8, 8992282), (13, 5533712), (16, 4496141), (19, 3786224), (26, 2766856), (38, 1893112), (52, 1383428), (76, 946556), (104, 691714), (109, 659984), (152, 473278), (167, 430768), (208, 345857), (218, 329992), (247, 291248), (304, 236639), (334, 215384), (436, 164996), (494, 145624), (668, 107692), (872, 82498), (988, 72812), (1336, 53846), (1417, 50768), (1744, 41249), (1976, 36406), (2071, 34736), (2171, 33136), (2672, 26923), (2834, 25384), (3173, 22672), (3952, 18203), (4142, 17368), (4342, 16568), (5668, 12692), (6346, 11336), (8284, 8684)]