400797488

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1823}}^1$

素因数の和:2002

約数の個数: 80

約数和(自身を含む): 962605056

約数和(自身を除く): 561807568

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 151, 182, 208, 302, 364, 604, 728, 1057, 1208, 1456, 1823, 1963, 2114, 2416, 3646, 3926, 4228, 7292, 7852, 8456, 12761, 13741, 14584, 15704, 16912, 23699, 25522, 27482, 29168, 31408, 47398, 51044, 54964, 94796, 102088, 109928, 165893, 189592, 204176, 219856, 275273, 331786, 379184, 550546, 663572, 1101092, 1327144, 1926911, 2202184, 2654288, 3578549, 3853822, 4404368, 7157098, 7707644, 14314196, 15415288, 25049843, 28628392, 30830576, 50099686, 57256784, 100199372, 200398744, 400797488]

約数ペア:

[(1, 400797488), (2, 200398744), (4, 100199372), (7, 57256784), (8, 50099686), (13, 30830576), (14, 28628392), (16, 25049843), (26, 15415288), (28, 14314196), (52, 7707644), (56, 7157098), (91, 4404368), (104, 3853822), (112, 3578549), (151, 2654288), (182, 2202184), (208, 1926911), (302, 1327144), (364, 1101092), (604, 663572), (728, 550546), (1057, 379184), (1208, 331786), (1456, 275273), (1823, 219856), (1963, 204176), (2114, 189592), (2416, 165893), (3646, 109928), (3926, 102088), (4228, 94796), (7292, 54964), (7852, 51044), (8456, 47398), (12761, 31408), (13741, 29168), (14584, 27482), (15704, 25522), (16912, 23699)]