256460940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8741}}^1$

素因数の和:8919

約数の個数: 72

約数和(自身を含む): 782793648

約数和(自身を除く): 526332708

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 815, 978, 1467, 1630, 1956, 2445, 2934, 3260, 4890, 5868, 7335, 8741, 9780, 14670, 17482, 26223, 29340, 34964, 43705, 52446, 78669, 87410, 104892, 131115, 157338, 174820, 262230, 314676, 393345, 524460, 786690, 1424783, 1573380, 2849566, 4274349, 5699132, 7123915, 8548698, 12823047, 14247830, 17097396, 21371745, 25646094, 28495660, 42743490, 51292188, 64115235, 85486980, 128230470, 256460940]

約数ペア:

[(1, 256460940), (2, 128230470), (3, 85486980), (4, 64115235), (5, 51292188), (6, 42743490), (9, 28495660), (10, 25646094), (12, 21371745), (15, 17097396), (18, 14247830), (20, 12823047), (30, 8548698), (36, 7123915), (45, 5699132), (60, 4274349), (90, 2849566), (163, 1573380), (180, 1424783), (326, 786690), (489, 524460), (652, 393345), (815, 314676), (978, 262230), (1467, 174820), (1630, 157338), (1956, 131115), (2445, 104892), (2934, 87410), (3260, 78669), (4890, 52446), (5868, 43705), (7335, 34964), (8741, 29340), (9780, 26223), (14670, 17482)]