178828380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52289}}^1$

素因数の和:52323

約数の個数: 72

約数和(自身を含む): 571006800

約数和(自身を除く): 392178420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 52289, 104578, 156867, 209156, 261445, 313734, 470601, 522890, 627468, 784335, 941202, 993491, 1045780, 1568670, 1882404, 1986982, 2353005, 2980473, 3137340, 3973964, 4706010, 4967455, 5960946, 8941419, 9412020, 9934910, 11921892, 14902365, 17882838, 19869820, 29804730, 35765676, 44707095, 59609460, 89414190, 178828380]

約数ペア:

[(1, 178828380), (2, 89414190), (3, 59609460), (4, 44707095), (5, 35765676), (6, 29804730), (9, 19869820), (10, 17882838), (12, 14902365), (15, 11921892), (18, 9934910), (19, 9412020), (20, 8941419), (30, 5960946), (36, 4967455), (38, 4706010), (45, 3973964), (57, 3137340), (60, 2980473), (76, 2353005), (90, 1986982), (95, 1882404), (114, 1568670), (171, 1045780), (180, 993491), (190, 941202), (228, 784335), (285, 627468), (342, 522890), (380, 470601), (570, 313734), (684, 261445), (855, 209156), (1140, 156867), (1710, 104578), (3420, 52289)]