7219660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 18098640

約数和(自身を除く): 10878980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 139, 140, 196, 212, 245, 265, 278, 371, 490, 530, 556, 695, 742, 973, 980, 1060, 1390, 1484, 1855, 1946, 2597, 2780, 3710, 3892, 4865, 5194, 6811, 7367, 7420, 9730, 10388, 12985, 13622, 14734, 19460, 25970, 27244, 29468, 34055, 36835, 51569, 51940, 68110, 73670, 103138, 136220, 147340, 206276, 257845, 360983, 515690, 721966, 1031380, 1443932, 1804915, 3609830, 7219660]

約数ペア:

[(1, 7219660), (2, 3609830), (4, 1804915), (5, 1443932), (7, 1031380), (10, 721966), (14, 515690), (20, 360983), (28, 257845), (35, 206276), (49, 147340), (53, 136220), (70, 103138), (98, 73670), (106, 68110), (139, 51940), (140, 51569), (196, 36835), (212, 34055), (245, 29468), (265, 27244), (278, 25970), (371, 19460), (490, 14734), (530, 13622), (556, 12985), (695, 10388), (742, 9730), (973, 7420), (980, 7367), (1060, 6811), (1390, 5194), (1484, 4865), (1855, 3892), (1946, 3710), (2597, 2780)]