388996975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{719}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 546393600

約数和(自身を除く): 157396625

約数列:

[1, 5, 17, 19, 25, 67, 85, 95, 323, 335, 425, 475, 719, 1139, 1273, 1615, 1675, 3595, 5695, 6365, 8075, 12223, 13661, 17975, 21641, 28475, 31825, 48173, 61115, 68305, 108205, 232237, 240865, 305575, 341525, 541025, 818941, 915287, 1161185, 1204325, 4094705, 4576435, 5805925, 15559879, 20473525, 22882175, 77799395, 388996975]

約数ペア:

[(1, 388996975), (5, 77799395), (17, 22882175), (19, 20473525), (25, 15559879), (67, 5805925), (85, 4576435), (95, 4094705), (323, 1204325), (335, 1161185), (425, 915287), (475, 818941), (719, 541025), (1139, 341525), (1273, 305575), (1615, 240865), (1675, 232237), (3595, 108205), (5695, 68305), (6365, 61115), (8075, 48173), (12223, 31825), (13661, 28475), (17975, 21641)]