391928784

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20261}}^1$

素因数の和:20316

約数の個数: 80

約数和(自身を含む): 1125594624

約数和(自身を除く): 733665840

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 39, 48, 52, 62, 78, 93, 104, 124, 156, 186, 208, 248, 312, 372, 403, 496, 624, 744, 806, 1209, 1488, 1612, 2418, 3224, 4836, 6448, 9672, 19344, 20261, 40522, 60783, 81044, 121566, 162088, 243132, 263393, 324176, 486264, 526786, 628091, 790179, 972528, 1053572, 1256182, 1580358, 1884273, 2107144, 2512364, 3160716, 3768546, 4214288, 5024728, 6321432, 7537092, 8165183, 10049456, 12642864, 15074184, 16330366, 24495549, 30148368, 32660732, 48991098, 65321464, 97982196, 130642928, 195964392, 391928784]

約数ペア:

[(1, 391928784), (2, 195964392), (3, 130642928), (4, 97982196), (6, 65321464), (8, 48991098), (12, 32660732), (13, 30148368), (16, 24495549), (24, 16330366), (26, 15074184), (31, 12642864), (39, 10049456), (48, 8165183), (52, 7537092), (62, 6321432), (78, 5024728), (93, 4214288), (104, 3768546), (124, 3160716), (156, 2512364), (186, 2107144), (208, 1884273), (248, 1580358), (312, 1256182), (372, 1053572), (403, 972528), (496, 790179), (624, 628091), (744, 526786), (806, 486264), (1209, 324176), (1488, 263393), (1612, 243132), (2418, 162088), (3224, 121566), (4836, 81044), (6448, 60783), (9672, 40522), (19344, 20261)]