203555920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:644

約数の個数: 80

約数和(自身を含む): 492111360

約数和(自身を除く): 288555440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 211, 248, 310, 389, 422, 496, 620, 778, 844, 1055, 1240, 1556, 1688, 1945, 2110, 2480, 3112, 3376, 3890, 4220, 6224, 6541, 7780, 8440, 12059, 13082, 15560, 16880, 24118, 26164, 31120, 32705, 48236, 52328, 60295, 65410, 82079, 96472, 104656, 120590, 130820, 164158, 192944, 241180, 261640, 328316, 410395, 482360, 523280, 656632, 820790, 964720, 1313264, 1641580, 2544449, 3283160, 5088898, 6566320, 10177796, 12722245, 20355592, 25444490, 40711184, 50888980, 101777960, 203555920]

約数ペア:

[(1, 203555920), (2, 101777960), (4, 50888980), (5, 40711184), (8, 25444490), (10, 20355592), (16, 12722245), (20, 10177796), (31, 6566320), (40, 5088898), (62, 3283160), (80, 2544449), (124, 1641580), (155, 1313264), (211, 964720), (248, 820790), (310, 656632), (389, 523280), (422, 482360), (496, 410395), (620, 328316), (778, 261640), (844, 241180), (1055, 192944), (1240, 164158), (1556, 130820), (1688, 120590), (1945, 104656), (2110, 96472), (2480, 82079), (3112, 65410), (3376, 60295), (3890, 52328), (4220, 48236), (6224, 32705), (6541, 31120), (7780, 26164), (8440, 24118), (12059, 16880), (13082, 15560)]