18450040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{503}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 29450120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 503, 524, 655, 917, 1006, 1048, 1310, 1834, 2012, 2515, 2620, 3521, 3668, 4024, 4585, 5030, 5240, 7042, 7336, 9170, 10060, 14084, 17605, 18340, 20120, 28168, 35210, 36680, 65893, 70420, 131786, 140840, 263572, 329465, 461251, 527144, 658930, 922502, 1317860, 1845004, 2306255, 2635720, 3690008, 4612510, 9225020, 18450040]

約数ペア:

[(1, 18450040), (2, 9225020), (4, 4612510), (5, 3690008), (7, 2635720), (8, 2306255), (10, 1845004), (14, 1317860), (20, 922502), (28, 658930), (35, 527144), (40, 461251), (56, 329465), (70, 263572), (131, 140840), (140, 131786), (262, 70420), (280, 65893), (503, 36680), (524, 35210), (655, 28168), (917, 20120), (1006, 18340), (1048, 17605), (1310, 14084), (1834, 10060), (2012, 9170), (2515, 7336), (2620, 7042), (3521, 5240), (3668, 5030), (4024, 4585)]