1978156306551

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{6761}}^1\times {\mathrm{32369}}^1$

素因数の和:39287

約数の個数: 32

約数和(自身を含む): 2773722631680

約数和(自身を除く): 795566325129

約数列:

[1, 3, 23, 69, 131, 393, 3013, 6761, 9039, 20283, 32369, 97107, 155503, 466509, 744487, 885691, 2233461, 2657073, 4240339, 12721017, 20370893, 61112679, 97527797, 218846809, 292583391, 656540427, 5033476607, 15100429821, 28668931979, 86006795937, 659385435517, 1978156306551]

約数ペア:

[(1, 1978156306551), (3, 659385435517), (23, 86006795937), (69, 28668931979), (131, 15100429821), (393, 5033476607), (3013, 656540427), (6761, 292583391), (9039, 218846809), (20283, 97527797), (32369, 61112679), (97107, 20370893), (155503, 12721017), (466509, 4240339), (744487, 2657073), (885691, 2233461)]