261642015

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{619}}^1$

素因数の和:765

約数の個数: 64

約数和(自身を含む): 485683200

約数和(自身を除く): 224041185

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 101, 135, 155, 279, 303, 465, 505, 619, 837, 909, 1395, 1515, 1857, 2727, 3095, 3131, 4185, 4545, 5571, 9285, 9393, 13635, 15655, 16713, 19189, 27855, 28179, 46965, 57567, 62519, 83565, 84537, 95945, 140895, 172701, 187557, 287835, 312595, 422685, 518103, 562671, 863505, 937785, 1688013, 1938089, 2590515, 2813355, 5814267, 8440065, 9690445, 17442801, 29071335, 52328403, 87214005, 261642015]

約数ペア:

[(1, 261642015), (3, 87214005), (5, 52328403), (9, 29071335), (15, 17442801), (27, 9690445), (31, 8440065), (45, 5814267), (93, 2813355), (101, 2590515), (135, 1938089), (155, 1688013), (279, 937785), (303, 863505), (465, 562671), (505, 518103), (619, 422685), (837, 312595), (909, 287835), (1395, 187557), (1515, 172701), (1857, 140895), (2727, 95945), (3095, 84537), (3131, 83565), (4185, 62519), (4545, 57567), (5571, 46965), (9285, 28179), (9393, 27855), (13635, 19189), (15655, 16713)]