78981955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2063}}^1$

素因数の和:2131

約数の個数: 32

約数和(自身を含む): 110960640

約数和(自身を除く): 31978685

約数列:

[1, 5, 13, 19, 31, 65, 95, 155, 247, 403, 589, 1235, 2015, 2063, 2945, 7657, 10315, 26819, 38285, 39197, 63953, 134095, 195985, 319765, 509561, 831389, 1215107, 2547805, 4156945, 6075535, 15796391, 78981955]

約数ペア:

[(1, 78981955), (5, 15796391), (13, 6075535), (19, 4156945), (31, 2547805), (65, 1215107), (95, 831389), (155, 509561), (247, 319765), (403, 195985), (589, 134095), (1235, 63953), (2015, 39197), (2063, 38285), (2945, 26819), (7657, 10315)]