78013880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{751}}^1$

素因数の和:829

約数の個数: 96

約数和(自身を含む): 208319040

約数和(自身を除く): 130305160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 53, 56, 70, 98, 106, 140, 196, 212, 245, 265, 280, 371, 392, 424, 490, 530, 742, 751, 980, 1060, 1484, 1502, 1855, 1960, 2120, 2597, 2968, 3004, 3710, 3755, 5194, 5257, 6008, 7420, 7510, 10388, 10514, 12985, 14840, 15020, 20776, 21028, 25970, 26285, 30040, 36799, 39803, 42056, 51940, 52570, 73598, 79606, 103880, 105140, 147196, 159212, 183995, 199015, 210280, 278621, 294392, 318424, 367990, 398030, 557242, 735980, 796060, 1114484, 1393105, 1471960, 1592120, 1950347, 2228968, 2786210, 3900694, 5572420, 7801388, 9751735, 11144840, 15602776, 19503470, 39006940, 78013880]

約数ペア:

[(1, 78013880), (2, 39006940), (4, 19503470), (5, 15602776), (7, 11144840), (8, 9751735), (10, 7801388), (14, 5572420), (20, 3900694), (28, 2786210), (35, 2228968), (40, 1950347), (49, 1592120), (53, 1471960), (56, 1393105), (70, 1114484), (98, 796060), (106, 735980), (140, 557242), (196, 398030), (212, 367990), (245, 318424), (265, 294392), (280, 278621), (371, 210280), (392, 199015), (424, 183995), (490, 159212), (530, 147196), (742, 105140), (751, 103880), (980, 79606), (1060, 73598), (1484, 52570), (1502, 51940), (1855, 42056), (1960, 39803), (2120, 36799), (2597, 30040), (2968, 26285), (3004, 25970), (3710, 21028), (3755, 20776), (5194, 15020), (5257, 14840), (6008, 12985), (7420, 10514), (7510, 10388)]