400392455820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{953315371}}^1$

素因数の和:953315390

約数の個数: 48

約数和(自身を含む): 1281255859968

約数和(自身を除く): 880863404148

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 953315371, 1906630742, 2859946113, 3813261484, 4766576855, 5719892226, 6673207597, 9533153710, 11439784452, 13346415194, 14299730565, 19066307420, 20019622791, 26692830388, 28599461130, 33366037985, 40039245582, 57198922260, 66732075970, 80078491164, 100098113955, 133464151940, 200196227910, 400392455820]

約数ペア:

[(1, 400392455820), (2, 200196227910), (3, 133464151940), (4, 100098113955), (5, 80078491164), (6, 66732075970), (7, 57198922260), (10, 40039245582), (12, 33366037985), (14, 28599461130), (15, 26692830388), (20, 20019622791), (21, 19066307420), (28, 14299730565), (30, 13346415194), (35, 11439784452), (42, 9533153710), (60, 6673207597), (70, 5719892226), (84, 4766576855), (105, 3813261484), (140, 2859946113), (210, 1906630742), (420, 953315371)]