202371760

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:806

約数の個数: 80

約数和(自身を含む): 487602720

約数和(自身を除く): 285230960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 89, 172, 178, 215, 344, 356, 430, 445, 661, 688, 712, 860, 890, 1322, 1424, 1720, 1780, 2644, 3305, 3440, 3560, 3827, 5288, 6610, 7120, 7654, 10576, 13220, 15308, 19135, 26440, 28423, 30616, 38270, 52880, 56846, 58829, 61232, 76540, 113692, 117658, 142115, 153080, 227384, 235316, 284230, 294145, 306160, 454768, 470632, 568460, 588290, 941264, 1136920, 1176580, 2273840, 2353160, 2529647, 4706320, 5059294, 10118588, 12648235, 20237176, 25296470, 40474352, 50592940, 101185880, 202371760]

約数ペア:

[(1, 202371760), (2, 101185880), (4, 50592940), (5, 40474352), (8, 25296470), (10, 20237176), (16, 12648235), (20, 10118588), (40, 5059294), (43, 4706320), (80, 2529647), (86, 2353160), (89, 2273840), (172, 1176580), (178, 1136920), (215, 941264), (344, 588290), (356, 568460), (430, 470632), (445, 454768), (661, 306160), (688, 294145), (712, 284230), (860, 235316), (890, 227384), (1322, 153080), (1424, 142115), (1720, 117658), (1780, 113692), (2644, 76540), (3305, 61232), (3440, 58829), (3560, 56846), (3827, 52880), (5288, 38270), (6610, 30616), (7120, 28423), (7654, 26440), (10576, 19135), (13220, 15308)]