778876540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{27997}}^1$

素因数の和:28126

約数の個数: 48

約数和(自身を含む): 1777984992

約数和(自身を除く): 999108452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 428, 535, 1070, 1391, 2140, 2782, 5564, 6955, 13910, 27820, 27997, 55994, 111988, 139985, 279970, 363961, 559940, 727922, 1455844, 1819805, 2995679, 3639610, 5991358, 7279220, 11982716, 14978395, 29956790, 38943827, 59913580, 77887654, 155775308, 194719135, 389438270, 778876540]

約数ペア:

[(1, 778876540), (2, 389438270), (4, 194719135), (5, 155775308), (10, 77887654), (13, 59913580), (20, 38943827), (26, 29956790), (52, 14978395), (65, 11982716), (107, 7279220), (130, 5991358), (214, 3639610), (260, 2995679), (428, 1819805), (535, 1455844), (1070, 727922), (1391, 559940), (2140, 363961), (2782, 279970), (5564, 139985), (6955, 111988), (13910, 55994), (27820, 27997)]