155820

素因数分解:

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

素因数の和:79

約数の個数: 72

約数和(自身を含む): 517104

約数和(自身を除く): 361284

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 53, 60, 70, 84, 98, 105, 106, 140, 147, 159, 196, 210, 212, 245, 265, 294, 318, 371, 420, 490, 530, 588, 636, 735, 742, 795, 980, 1060, 1113, 1470, 1484, 1590, 1855, 2226, 2597, 2940, 3180, 3710, 4452, 5194, 5565, 7420, 7791, 10388, 11130, 12985, 15582, 22260, 25970, 31164, 38955, 51940, 77910, 155820]

約数ペア:

[(1, 155820), (2, 77910), (3, 51940), (4, 38955), (5, 31164), (6, 25970), (7, 22260), (10, 15582), (12, 12985), (14, 11130), (15, 10388), (20, 7791), (21, 7420), (28, 5565), (30, 5194), (35, 4452), (42, 3710), (49, 3180), (53, 2940), (60, 2597), (70, 2226), (84, 1855), (98, 1590), (105, 1484), (106, 1470), (140, 1113), (147, 1060), (159, 980), (196, 795), (210, 742), (212, 735), (245, 636), (265, 588), (294, 530), (318, 490), (371, 420)]