81895130

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 163296000

約数和(自身を除く): 81400870

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 89, 95, 145, 167, 178, 190, 290, 334, 445, 551, 835, 890, 1102, 1670, 1691, 2581, 2755, 3173, 3382, 4843, 5162, 5510, 6346, 8455, 9686, 12905, 14863, 15865, 16910, 24215, 25810, 29726, 31730, 48430, 49039, 74315, 92017, 98078, 148630, 184034, 245195, 282397, 431027, 460085, 490390, 564794, 862054, 920170, 1411985, 2155135, 2823970, 4310270, 8189513, 16379026, 40947565, 81895130]

約数ペア:

[(1, 81895130), (2, 40947565), (5, 16379026), (10, 8189513), (19, 4310270), (29, 2823970), (38, 2155135), (58, 1411985), (89, 920170), (95, 862054), (145, 564794), (167, 490390), (178, 460085), (190, 431027), (290, 282397), (334, 245195), (445, 184034), (551, 148630), (835, 98078), (890, 92017), (1102, 74315), (1670, 49039), (1691, 48430), (2581, 31730), (2755, 29726), (3173, 25810), (3382, 24215), (4843, 16910), (5162, 15865), (5510, 14863), (6346, 12905), (8455, 9686)]