28644420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{9743}}^1$

素因数の和:9769

約数の個数: 72

約数和(自身を含む): 93308544

約数和(自身を除く): 64664124

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 9743, 19486, 29229, 38972, 48715, 58458, 68201, 97430, 116916, 136402, 146145, 194860, 204603, 272804, 292290, 341005, 409206, 477407, 584580, 682010, 818412, 954814, 1023015, 1364020, 1432221, 1909628, 2046030, 2387035, 2864442, 4092060, 4774070, 5728884, 7161105, 9548140, 14322210, 28644420]

約数ペア:

[(1, 28644420), (2, 14322210), (3, 9548140), (4, 7161105), (5, 5728884), (6, 4774070), (7, 4092060), (10, 2864442), (12, 2387035), (14, 2046030), (15, 1909628), (20, 1432221), (21, 1364020), (28, 1023015), (30, 954814), (35, 818412), (42, 682010), (49, 584580), (60, 477407), (70, 409206), (84, 341005), (98, 292290), (105, 272804), (140, 204603), (147, 194860), (196, 146145), (210, 136402), (245, 116916), (294, 97430), (420, 68201), (490, 58458), (588, 48715), (735, 38972), (980, 29229), (1470, 19486), (2940, 9743)]