280348515

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2503}}^1$

素因数の和:2664

約数の個数: 48

約数和(自身を含む): 515623680

約数和(自身を除く): 235275165

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 131, 171, 285, 393, 655, 855, 1179, 1965, 2489, 2503, 5895, 7467, 7509, 12445, 12515, 22401, 22527, 37335, 37545, 47557, 112005, 112635, 142671, 237785, 327893, 428013, 713355, 983679, 1639465, 2140065, 2951037, 4918395, 6229967, 14755185, 18689901, 31149835, 56069703, 93449505, 280348515]

約数ペア:

[(1, 280348515), (3, 93449505), (5, 56069703), (9, 31149835), (15, 18689901), (19, 14755185), (45, 6229967), (57, 4918395), (95, 2951037), (131, 2140065), (171, 1639465), (285, 983679), (393, 713355), (655, 428013), (855, 327893), (1179, 237785), (1965, 142671), (2489, 112635), (2503, 112005), (5895, 47557), (7467, 37545), (7509, 37335), (12445, 22527), (12515, 22401)]