131344990

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 278640000

約数和(自身を除く): 147295010

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 149, 245, 257, 298, 343, 490, 514, 686, 745, 1043, 1285, 1490, 1715, 1799, 2086, 2570, 3430, 3598, 5215, 7301, 8995, 10430, 12593, 14602, 17990, 25186, 36505, 38293, 51107, 62965, 73010, 76586, 88151, 102214, 125930, 176302, 191465, 255535, 268051, 382930, 440755, 511070, 536102, 881510, 1340255, 1876357, 2680510, 3752714, 9381785, 13134499, 18763570, 26268998, 65672495, 131344990]

約数ペア:

[(1, 131344990), (2, 65672495), (5, 26268998), (7, 18763570), (10, 13134499), (14, 9381785), (35, 3752714), (49, 2680510), (70, 1876357), (98, 1340255), (149, 881510), (245, 536102), (257, 511070), (298, 440755), (343, 382930), (490, 268051), (514, 255535), (686, 191465), (745, 176302), (1043, 125930), (1285, 102214), (1490, 88151), (1715, 76586), (1799, 73010), (2086, 62965), (2570, 51107), (3430, 38293), (3598, 36505), (5215, 25186), (7301, 17990), (8995, 14602), (10430, 12593)]