28127553220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{397}}^1\times {\mathrm{719}}^1$

素因数の和:1517

約数の個数: 96

約数和(自身を含む): 64028966400

約数和(自身を除く): 35901413180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 379, 397, 719, 758, 794, 1438, 1516, 1588, 1895, 1985, 2876, 3595, 3790, 3970, 4927, 5161, 7190, 7580, 7940, 9347, 9854, 10322, 14380, 18694, 19708, 20644, 24635, 25805, 37388, 46735, 49270, 51610, 93470, 98540, 103220, 150463, 186940, 272501, 285443, 300926, 545002, 570886, 601852, 752315, 1090004, 1141772, 1362505, 1427215, 1504630, 1956019, 2725010, 2854430, 3009260, 3542513, 3710759, 3912038, 5450020, 5708860, 7085026, 7421518, 7824076, 9780095, 14170052, 14843036, 17712565, 18553795, 19560190, 35425130, 37107590, 39120380, 70850260, 74215180, 108182897, 216365794, 432731588, 540914485, 1081828970, 1406377661, 2163657940, 2812755322, 5625510644, 7031888305, 14063776610, 28127553220]

約数ペア:

[(1, 28127553220), (2, 14063776610), (4, 7031888305), (5, 5625510644), (10, 2812755322), (13, 2163657940), (20, 1406377661), (26, 1081828970), (52, 540914485), (65, 432731588), (130, 216365794), (260, 108182897), (379, 74215180), (397, 70850260), (719, 39120380), (758, 37107590), (794, 35425130), (1438, 19560190), (1516, 18553795), (1588, 17712565), (1895, 14843036), (1985, 14170052), (2876, 9780095), (3595, 7824076), (3790, 7421518), (3970, 7085026), (4927, 5708860), (5161, 5450020), (7190, 3912038), (7580, 3710759), (7940, 3542513), (9347, 3009260), (9854, 2854430), (10322, 2725010), (14380, 1956019), (18694, 1504630), (19708, 1427215), (20644, 1362505), (24635, 1141772), (25805, 1090004), (37388, 752315), (46735, 601852), (49270, 570886), (51610, 545002), (93470, 300926), (98540, 285443), (103220, 272501), (150463, 186940)]