2044280

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{149}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 5400000

約数和(自身を除く): 3355720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 149, 196, 245, 280, 298, 343, 392, 490, 596, 686, 745, 980, 1043, 1192, 1372, 1490, 1715, 1960, 2086, 2744, 2980, 3430, 4172, 5215, 5960, 6860, 7301, 8344, 10430, 13720, 14602, 20860, 29204, 36505, 41720, 51107, 58408, 73010, 102214, 146020, 204428, 255535, 292040, 408856, 511070, 1022140, 2044280]

約数ペア:

[(1, 2044280), (2, 1022140), (4, 511070), (5, 408856), (7, 292040), (8, 255535), (10, 204428), (14, 146020), (20, 102214), (28, 73010), (35, 58408), (40, 51107), (49, 41720), (56, 36505), (70, 29204), (98, 20860), (140, 14602), (149, 13720), (196, 10430), (245, 8344), (280, 7301), (298, 6860), (343, 5960), (392, 5215), (490, 4172), (596, 3430), (686, 2980), (745, 2744), (980, 2086), (1043, 1960), (1192, 1715), (1372, 1490)]