221518720

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18217}}^1$

素因数の和:18255

約数の個数: 64

約数和(自身を含む): 557470800

約数和(自身を除く): 335952080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 12160, 18217, 36434, 72868, 91085, 145736, 182170, 291472, 346123, 364340, 582944, 692246, 728680, 1165888, 1384492, 1457360, 1730615, 2331776, 2768984, 2914720, 3461230, 5537968, 5829440, 6922460, 11075936, 11658880, 13844920, 22151872, 27689840, 44303744, 55379680, 110759360, 221518720]

約数ペア:

[(1, 221518720), (2, 110759360), (4, 55379680), (5, 44303744), (8, 27689840), (10, 22151872), (16, 13844920), (19, 11658880), (20, 11075936), (32, 6922460), (38, 5829440), (40, 5537968), (64, 3461230), (76, 2914720), (80, 2768984), (95, 2331776), (128, 1730615), (152, 1457360), (160, 1384492), (190, 1165888), (304, 728680), (320, 692246), (380, 582944), (608, 364340), (640, 346123), (760, 291472), (1216, 182170), (1520, 145736), (2432, 91085), (3040, 72868), (6080, 36434), (12160, 18217)]