256445340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251417}}^1$

素因数の和:251446

約数の個数: 48

約数和(自身を含む): 760288032

約数和(自身を除く): 503842692

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 251417, 502834, 754251, 1005668, 1257085, 1508502, 2514170, 3017004, 3771255, 4274089, 5028340, 7542510, 8548178, 12822267, 15085020, 17096356, 21370445, 25644534, 42740890, 51289068, 64111335, 85481780, 128222670, 256445340]

約数ペア:

[(1, 256445340), (2, 128222670), (3, 85481780), (4, 64111335), (5, 51289068), (6, 42740890), (10, 25644534), (12, 21370445), (15, 17096356), (17, 15085020), (20, 12822267), (30, 8548178), (34, 7542510), (51, 5028340), (60, 4274089), (68, 3771255), (85, 3017004), (102, 2514170), (170, 1508502), (204, 1257085), (255, 1005668), (340, 754251), (510, 502834), (1020, 251417)]