64601615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 93868320

約数和(自身を除く): 29266705

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 181, 221, 247, 289, 323, 905, 1105, 1235, 1445, 1615, 2353, 3077, 3439, 3757, 4199, 5491, 11765, 15385, 17195, 18785, 20995, 27455, 40001, 44707, 52309, 58463, 71383, 200005, 223535, 261545, 292315, 356915, 680017, 760019, 993871, 3400085, 3800095, 4969355, 12920323, 64601615]

約数ペア:

[(1, 64601615), (5, 12920323), (13, 4969355), (17, 3800095), (19, 3400085), (65, 993871), (85, 760019), (95, 680017), (181, 356915), (221, 292315), (247, 261545), (289, 223535), (323, 200005), (905, 71383), (1105, 58463), (1235, 52309), (1445, 44707), (1615, 40001), (2353, 27455), (3077, 20995), (3439, 18785), (3757, 17195), (4199, 15385), (5491, 11765)]