64978160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1453}}^1$

素因数の和:1522

約数の個数: 80

約数和(自身を含む): 166593504

約数和(自身を除く): 101615344

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1453, 1720, 2236, 2795, 2906, 3440, 4472, 5590, 5812, 7265, 8944, 11180, 11624, 14530, 18889, 22360, 23248, 29060, 37778, 44720, 58120, 62479, 75556, 94445, 116240, 124958, 151112, 188890, 249916, 302224, 312395, 377780, 499832, 624790, 755560, 812227, 999664, 1249580, 1511120, 1624454, 2499160, 3248908, 4061135, 4998320, 6497816, 8122270, 12995632, 16244540, 32489080, 64978160]

約数ペア:

[(1, 64978160), (2, 32489080), (4, 16244540), (5, 12995632), (8, 8122270), (10, 6497816), (13, 4998320), (16, 4061135), (20, 3248908), (26, 2499160), (40, 1624454), (43, 1511120), (52, 1249580), (65, 999664), (80, 812227), (86, 755560), (104, 624790), (130, 499832), (172, 377780), (208, 312395), (215, 302224), (260, 249916), (344, 188890), (430, 151112), (520, 124958), (559, 116240), (688, 94445), (860, 75556), (1040, 62479), (1118, 58120), (1453, 44720), (1720, 37778), (2236, 29060), (2795, 23248), (2906, 22360), (3440, 18889), (4472, 14530), (5590, 11624), (5812, 11180), (7265, 8944)]