255996880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9907}}^1$

素因数の和:9956

約数の個数: 80

約数和(自身を含む): 663439680

約数和(自身を除く): 407442800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1292, 1360, 1520, 1615, 2584, 3230, 5168, 6460, 9907, 12920, 19814, 25840, 39628, 49535, 79256, 99070, 158512, 168419, 188233, 198140, 336838, 376466, 396280, 673676, 752932, 792560, 842095, 941165, 1347352, 1505864, 1684190, 1882330, 2694704, 3011728, 3199961, 3368380, 3764660, 6399922, 6736760, 7529320, 12799844, 13473520, 15058640, 15999805, 25599688, 31999610, 51199376, 63999220, 127998440, 255996880]

約数ペア:

[(1, 255996880), (2, 127998440), (4, 63999220), (5, 51199376), (8, 31999610), (10, 25599688), (16, 15999805), (17, 15058640), (19, 13473520), (20, 12799844), (34, 7529320), (38, 6736760), (40, 6399922), (68, 3764660), (76, 3368380), (80, 3199961), (85, 3011728), (95, 2694704), (136, 1882330), (152, 1684190), (170, 1505864), (190, 1347352), (272, 941165), (304, 842095), (323, 792560), (340, 752932), (380, 673676), (646, 396280), (680, 376466), (760, 336838), (1292, 198140), (1360, 188233), (1520, 168419), (1615, 158512), (2584, 99070), (3230, 79256), (5168, 49535), (6460, 39628), (9907, 25840), (12920, 19814)]