1238808690

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{280909}}^1$

素因数の和:280936

約数の個数: 72

約数和(自身を含む): 3746777580

約数和(自身を除く): 2507968890

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 280909, 561818, 842727, 1404545, 1685454, 1966363, 2528181, 2809090, 3932726, 4213635, 5056362, 5899089, 8427270, 9831815, 11798178, 12640905, 13764541, 17697267, 19663630, 25281810, 27529082, 29495445, 35394534, 41293623, 58990890, 68822705, 82587246, 88486335, 123880869, 137645410, 176972670, 206468115, 247761738, 412936230, 619404345, 1238808690]

約数ペア:

[(1, 1238808690), (2, 619404345), (3, 412936230), (5, 247761738), (6, 206468115), (7, 176972670), (9, 137645410), (10, 123880869), (14, 88486335), (15, 82587246), (18, 68822705), (21, 58990890), (30, 41293623), (35, 35394534), (42, 29495445), (45, 27529082), (49, 25281810), (63, 19663630), (70, 17697267), (90, 13764541), (98, 12640905), (105, 11798178), (126, 9831815), (147, 8427270), (210, 5899089), (245, 5056362), (294, 4213635), (315, 3932726), (441, 2809090), (490, 2528181), (630, 1966363), (735, 1685454), (882, 1404545), (1470, 842727), (2205, 561818), (4410, 280909)]