1272460

素因数分解:

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

素因数の和:226

約数の個数: 48

約数和(自身を含む): 3124800

約数和(自身を除く): 1852340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 149, 244, 298, 305, 427, 596, 610, 745, 854, 1043, 1220, 1490, 1708, 2086, 2135, 2980, 4172, 4270, 5215, 8540, 9089, 10430, 18178, 20860, 36356, 45445, 63623, 90890, 127246, 181780, 254492, 318115, 636230, 1272460]

約数ペア:

[(1, 1272460), (2, 636230), (4, 318115), (5, 254492), (7, 181780), (10, 127246), (14, 90890), (20, 63623), (28, 45445), (35, 36356), (61, 20860), (70, 18178), (122, 10430), (140, 9089), (149, 8540), (244, 5215), (298, 4270), (305, 4172), (427, 2980), (596, 2135), (610, 2086), (745, 1708), (854, 1490), (1043, 1220)]