311640

素因数分解:

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

素因数の和:81

約数の個数: 96

約数和(自身を含む): 1108080

約数和(自身を除く): 796440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 53, 56, 60, 70, 84, 98, 105, 106, 120, 140, 147, 159, 168, 196, 210, 212, 245, 265, 280, 294, 318, 371, 392, 420, 424, 490, 530, 588, 636, 735, 742, 795, 840, 980, 1060, 1113, 1176, 1272, 1470, 1484, 1590, 1855, 1960, 2120, 2226, 2597, 2940, 2968, 3180, 3710, 4452, 5194, 5565, 5880, 6360, 7420, 7791, 8904, 10388, 11130, 12985, 14840, 15582, 20776, 22260, 25970, 31164, 38955, 44520, 51940, 62328, 77910, 103880, 155820, 311640]

約数ペア:

[(1, 311640), (2, 155820), (3, 103880), (4, 77910), (5, 62328), (6, 51940), (7, 44520), (8, 38955), (10, 31164), (12, 25970), (14, 22260), (15, 20776), (20, 15582), (21, 14840), (24, 12985), (28, 11130), (30, 10388), (35, 8904), (40, 7791), (42, 7420), (49, 6360), (53, 5880), (56, 5565), (60, 5194), (70, 4452), (84, 3710), (98, 3180), (105, 2968), (106, 2940), (120, 2597), (140, 2226), (147, 2120), (159, 1960), (168, 1855), (196, 1590), (210, 1484), (212, 1470), (245, 1272), (265, 1176), (280, 1113), (294, 1060), (318, 980), (371, 840), (392, 795), (420, 742), (424, 735), (490, 636), (530, 588)]