145338980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{3943}}^1$

素因数の和:4068

約数の個数: 48

約数和(自身を含む): 324670080

約数和(自身を除く): 179331100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 970, 1843, 1940, 3686, 3943, 7372, 7886, 9215, 15772, 18430, 19715, 36860, 39430, 74917, 78860, 149834, 299668, 374585, 382471, 749170, 764942, 1498340, 1529884, 1912355, 3824710, 7266949, 7649420, 14533898, 29067796, 36334745, 72669490, 145338980]

約数ペア:

[(1, 145338980), (2, 72669490), (4, 36334745), (5, 29067796), (10, 14533898), (19, 7649420), (20, 7266949), (38, 3824710), (76, 1912355), (95, 1529884), (97, 1498340), (190, 764942), (194, 749170), (380, 382471), (388, 374585), (485, 299668), (970, 149834), (1843, 78860), (1940, 74917), (3686, 39430), (3943, 36860), (7372, 19715), (7886, 18430), (9215, 15772)]