78394040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{331}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 183582720

約数和(自身を除く): 105188680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 191, 248, 310, 331, 382, 620, 662, 764, 955, 1240, 1324, 1528, 1655, 1910, 2648, 3310, 3820, 5921, 6620, 7640, 10261, 11842, 13240, 20522, 23684, 29605, 41044, 47368, 51305, 59210, 63221, 82088, 102610, 118420, 126442, 205220, 236840, 252884, 316105, 410440, 505768, 632210, 1264420, 1959851, 2528840, 3919702, 7839404, 9799255, 15678808, 19598510, 39197020, 78394040]

約数ペア:

[(1, 78394040), (2, 39197020), (4, 19598510), (5, 15678808), (8, 9799255), (10, 7839404), (20, 3919702), (31, 2528840), (40, 1959851), (62, 1264420), (124, 632210), (155, 505768), (191, 410440), (248, 316105), (310, 252884), (331, 236840), (382, 205220), (620, 126442), (662, 118420), (764, 102610), (955, 82088), (1240, 63221), (1324, 59210), (1528, 51305), (1655, 47368), (1910, 41044), (2648, 29605), (3310, 23684), (3820, 20522), (5921, 13240), (6620, 11842), (7640, 10261)]