78399160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1327}}^1$

素因数の和:1556

約数の個数: 64

約数和(自身を含む): 202705920

約数和(自身を除く): 124306760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 211, 280, 422, 844, 1055, 1327, 1477, 1688, 2110, 2654, 2954, 4220, 5308, 5908, 6635, 7385, 8440, 9289, 10616, 11816, 13270, 14770, 18578, 26540, 29540, 37156, 46445, 53080, 59080, 74312, 92890, 185780, 279997, 371560, 559994, 1119988, 1399985, 1959979, 2239976, 2799970, 3919958, 5599940, 7839916, 9799895, 11199880, 15679832, 19599790, 39199580, 78399160]

約数ペア:

[(1, 78399160), (2, 39199580), (4, 19599790), (5, 15679832), (7, 11199880), (8, 9799895), (10, 7839916), (14, 5599940), (20, 3919958), (28, 2799970), (35, 2239976), (40, 1959979), (56, 1399985), (70, 1119988), (140, 559994), (211, 371560), (280, 279997), (422, 185780), (844, 92890), (1055, 74312), (1327, 59080), (1477, 53080), (1688, 46445), (2110, 37156), (2654, 29540), (2954, 26540), (4220, 18578), (5308, 14770), (5908, 13270), (6635, 11816), (7385, 10616), (8440, 9289)]