20199783896

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{3823}}^1$

素因数の和:4140

約数の個数: 64

約数和(自身を含む): 39461385600

約数和(自身を除く): 19261601704

約数列:

[1, 2, 4, 8, 41, 82, 89, 164, 178, 181, 328, 356, 362, 712, 724, 1448, 3649, 3823, 7298, 7421, 7646, 14596, 14842, 15292, 16109, 29192, 29684, 30584, 32218, 59368, 64436, 128872, 156743, 313486, 340247, 626972, 660469, 680494, 691963, 1253944, 1320938, 1360988, 1383926, 2641876, 2721976, 2767852, 5283752, 5535704, 13950127, 27900254, 28370483, 55800508, 56740966, 61584707, 111601016, 113481932, 123169414, 226963864, 246338828, 492677656, 2524972987, 5049945974, 10099891948, 20199783896]

約数ペア:

[(1, 20199783896), (2, 10099891948), (4, 5049945974), (8, 2524972987), (41, 492677656), (82, 246338828), (89, 226963864), (164, 123169414), (178, 113481932), (181, 111601016), (328, 61584707), (356, 56740966), (362, 55800508), (712, 28370483), (724, 27900254), (1448, 13950127), (3649, 5535704), (3823, 5283752), (7298, 2767852), (7421, 2721976), (7646, 2641876), (14596, 1383926), (14842, 1360988), (15292, 1320938), (16109, 1253944), (29192, 691963), (29684, 680494), (30584, 660469), (32218, 626972), (59368, 340247), (64436, 313486), (128872, 156743)]