20199778848

素因数分解:

$2^5\times 3^2\times {\mathrm{109}}^1\times {\mathrm{643469}}^1$

素因数の和:643594

約数の個数: 72

約数和(自身を含む): 57970212300

約数和(自身を除く): 37770433452

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 109, 144, 218, 288, 327, 436, 654, 872, 981, 1308, 1744, 1962, 2616, 3488, 3924, 5232, 7848, 10464, 15696, 31392, 643469, 1286938, 1930407, 2573876, 3860814, 5147752, 5791221, 7721628, 10295504, 11582442, 15443256, 20591008, 23164884, 30886512, 46329768, 61773024, 70138121, 92659536, 140276242, 185319072, 210414363, 280552484, 420828726, 561104968, 631243089, 841657452, 1122209936, 1262486178, 1683314904, 2244419872, 2524972356, 3366629808, 5049944712, 6733259616, 10099889424, 20199778848]

約数ペア:

[(1, 20199778848), (2, 10099889424), (3, 6733259616), (4, 5049944712), (6, 3366629808), (8, 2524972356), (9, 2244419872), (12, 1683314904), (16, 1262486178), (18, 1122209936), (24, 841657452), (32, 631243089), (36, 561104968), (48, 420828726), (72, 280552484), (96, 210414363), (109, 185319072), (144, 140276242), (218, 92659536), (288, 70138121), (327, 61773024), (436, 46329768), (654, 30886512), (872, 23164884), (981, 20591008), (1308, 15443256), (1744, 11582442), (1962, 10295504), (2616, 7721628), (3488, 5791221), (3924, 5147752), (5232, 3860814), (7848, 2573876), (10464, 1930407), (15696, 1286938), (31392, 643469)]