258475980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{87917}}^1$

素因数の和:87943

約数の個数: 72

約数和(自身を含む): 841902768

約数和(自身を除く): 583426788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 87917, 175834, 263751, 351668, 439585, 527502, 615419, 879170, 1055004, 1230838, 1318755, 1758340, 1846257, 2461676, 2637510, 3077095, 3692514, 4307933, 5275020, 6154190, 7385028, 8615866, 9231285, 12308380, 12923799, 17231732, 18462570, 21539665, 25847598, 36925140, 43079330, 51695196, 64618995, 86158660, 129237990, 258475980]

約数ペア:

[(1, 258475980), (2, 129237990), (3, 86158660), (4, 64618995), (5, 51695196), (6, 43079330), (7, 36925140), (10, 25847598), (12, 21539665), (14, 18462570), (15, 17231732), (20, 12923799), (21, 12308380), (28, 9231285), (30, 8615866), (35, 7385028), (42, 6154190), (49, 5275020), (60, 4307933), (70, 3692514), (84, 3077095), (98, 2637510), (105, 2461676), (140, 1846257), (147, 1758340), (196, 1318755), (210, 1230838), (245, 1055004), (294, 879170), (420, 615419), (490, 527502), (588, 439585), (735, 351668), (980, 263751), (1470, 175834), (2940, 87917)]