1391113220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{320533}}^1$

素因数の和:320580

約数の個数: 48

約数和(自身を含む): 3446381568

約数和(自身を除く): 2055268348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 320533, 641066, 1282132, 1602665, 2243731, 3205330, 4487462, 6410660, 8974924, 9936523, 11218655, 19873046, 22437310, 39746092, 44874620, 49682615, 69555661, 99365230, 139111322, 198730460, 278222644, 347778305, 695556610, 1391113220]

約数ペア:

[(1, 1391113220), (2, 695556610), (4, 347778305), (5, 278222644), (7, 198730460), (10, 139111322), (14, 99365230), (20, 69555661), (28, 49682615), (31, 44874620), (35, 39746092), (62, 22437310), (70, 19873046), (124, 11218655), (140, 9936523), (155, 8974924), (217, 6410660), (310, 4487462), (434, 3205330), (620, 2243731), (868, 1602665), (1085, 1282132), (2170, 641066), (4340, 320533)]