287854775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 406265664

約数和(自身を除く): 118410889

約数列:

[1, 5, 13, 23, 25, 65, 97, 115, 299, 325, 397, 485, 575, 1261, 1495, 1985, 2231, 2425, 5161, 6305, 7475, 9131, 9925, 11155, 25805, 29003, 31525, 38509, 45655, 55775, 118703, 129025, 145015, 192545, 228275, 500617, 593515, 725075, 885707, 962725, 2503085, 2967575, 4428535, 11514191, 12515425, 22142675, 57570955, 287854775]

約数ペア:

[(1, 287854775), (5, 57570955), (13, 22142675), (23, 12515425), (25, 11514191), (65, 4428535), (97, 2967575), (115, 2503085), (299, 962725), (325, 885707), (397, 725075), (485, 593515), (575, 500617), (1261, 228275), (1495, 192545), (1985, 145015), (2231, 129025), (2425, 118703), (5161, 55775), (6305, 45655), (7475, 38509), (9131, 31525), (9925, 29003), (11155, 25805)]