1388402225

素因数分解:

$5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{919}}^1$

素因数の和:1122

約数の個数: 48

約数和(自身を含む): 2012371200

約数和(自身を除く): 623968975

約数列:

[1, 5, 7, 25, 35, 89, 97, 175, 445, 485, 623, 679, 919, 2225, 2425, 3115, 3395, 4595, 6433, 8633, 15575, 16975, 22975, 32165, 43165, 60431, 81791, 89143, 160825, 215825, 302155, 408955, 445715, 572537, 624001, 1510775, 2044775, 2228575, 2862685, 3120005, 7933727, 14313425, 15600025, 39668635, 55536089, 198343175, 277680445, 1388402225]

約数ペア:

[(1, 1388402225), (5, 277680445), (7, 198343175), (25, 55536089), (35, 39668635), (89, 15600025), (97, 14313425), (175, 7933727), (445, 3120005), (485, 2862685), (623, 2228575), (679, 2044775), (919, 1510775), (2225, 624001), (2425, 572537), (3115, 445715), (3395, 408955), (4595, 302155), (6433, 215825), (8633, 160825), (15575, 89143), (16975, 81791), (22975, 60431), (32165, 43165)]