19958156965

素因数分解:

$5^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{607}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 25951113216

約数和(自身を除く): 5992956251

約数列:

[1, 5, 23, 31, 115, 155, 401, 529, 607, 713, 2005, 2645, 3035, 3565, 9223, 12431, 13961, 16399, 18817, 46115, 62155, 69805, 81995, 94085, 212129, 243407, 285913, 321103, 432791, 1060645, 1217035, 1429565, 1605515, 2163955, 5598361, 6575999, 7545617, 9954193, 27991805, 32879995, 37728085, 49770965, 128762303, 173549191, 643811515, 867745955, 3991631393, 19958156965]

約数ペア:

[(1, 19958156965), (5, 3991631393), (23, 867745955), (31, 643811515), (115, 173549191), (155, 128762303), (401, 49770965), (529, 37728085), (607, 32879995), (713, 27991805), (2005, 9954193), (2645, 7545617), (3035, 6575999), (3565, 5598361), (9223, 2163955), (12431, 1605515), (13961, 1429565), (16399, 1217035), (18817, 1060645), (46115, 432791), (62155, 321103), (69805, 285913), (81995, 243407), (94085, 212129)]