2544920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 6696000

約数和(自身を除く): 4151080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 149, 244, 280, 298, 305, 427, 488, 596, 610, 745, 854, 1043, 1192, 1220, 1490, 1708, 2086, 2135, 2440, 2980, 3416, 4172, 4270, 5215, 5960, 8344, 8540, 9089, 10430, 17080, 18178, 20860, 36356, 41720, 45445, 63623, 72712, 90890, 127246, 181780, 254492, 318115, 363560, 508984, 636230, 1272460, 2544920]

約数ペア:

[(1, 2544920), (2, 1272460), (4, 636230), (5, 508984), (7, 363560), (8, 318115), (10, 254492), (14, 181780), (20, 127246), (28, 90890), (35, 72712), (40, 63623), (56, 45445), (61, 41720), (70, 36356), (122, 20860), (140, 18178), (149, 17080), (244, 10430), (280, 9089), (298, 8540), (305, 8344), (427, 5960), (488, 5215), (596, 4270), (610, 4172), (745, 3416), (854, 2980), (1043, 2440), (1192, 2135), (1220, 2086), (1490, 1708)]