404964420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{137743}}^1$

素因数の和:137769

約数の個数: 72

約数和(自身を含む): 1319036544

約数和(自身を除く): 914072124

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, 137743, 275486, 413229, 550972, 688715, 826458, 964201, 1377430, 1652916, 1928402, 2066145, 2754860, 2892603, 3856804, 4132290, 4821005, 5785206, 6749407, 8264580, 9642010, 11570412, 13498814, 14463015, 19284020, 20248221, 26997628, 28926030, 33747035, 40496442, 57852060, 67494070, 80992884, 101241105, 134988140, 202482210, 404964420]

約数ペア:

[(1, 404964420), (2, 202482210), (3, 134988140), (4, 101241105), (5, 80992884), (6, 67494070), (7, 57852060), (10, 40496442), (12, 33747035), (14, 28926030), (15, 26997628), (20, 20248221), (21, 19284020), (28, 14463015), (30, 13498814), (35, 11570412), (42, 9642010), (49, 8264580), (60, 6749407), (70, 5785206), (84, 4821005), (98, 4132290), (105, 3856804), (140, 2892603), (147, 2754860), (196, 2066145), (210, 1928402), (245, 1652916), (294, 1377430), (420, 964201), (490, 826458), (588, 688715), (735, 550972), (980, 413229), (1470, 275486), (2940, 137743)]