208691820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:612

約数の個数: 144

約数和(自身を含む): 672672000

約数和(自身を除く): 463980180

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, 139, 171, 180, 190, 228, 278, 285, 342, 380, 417, 439, 556, 570, 684, 695, 834, 855, 878, 1140, 1251, 1317, 1390, 1668, 1710, 1756, 2085, 2195, 2502, 2634, 2641, 2780, 3420, 3951, 4170, 4390, 5004, 5268, 5282, 6255, 6585, 7902, 7923, 8340, 8341, 8780, 10564, 12510, 13170, 13205, 15804, 15846, 16682, 19755, 23769, 25020, 25023, 26340, 26410, 31692, 33364, 39510, 39615, 41705, 47538, 50046, 52820, 61021, 75069, 79020, 79230, 83410, 95076, 100092, 118845, 122042, 125115, 150138, 158460, 166820, 183063, 237690, 244084, 250230, 300276, 305105, 366126, 375345, 475380, 500460, 549189, 610210, 732252, 750690, 915315, 1098378, 1159399, 1220420, 1501380, 1830630, 2196756, 2318798, 2745945, 3478197, 3661260, 4637596, 5491890, 5796995, 6956394, 10434591, 10983780, 11593990, 13912788, 17390985, 20869182, 23187980, 34781970, 41738364, 52172955, 69563940, 104345910, 208691820]

約数ペア:

[(1, 208691820), (2, 104345910), (3, 69563940), (4, 52172955), (5, 41738364), (6, 34781970), (9, 23187980), (10, 20869182), (12, 17390985), (15, 13912788), (18, 11593990), (19, 10983780), (20, 10434591), (30, 6956394), (36, 5796995), (38, 5491890), (45, 4637596), (57, 3661260), (60, 3478197), (76, 2745945), (90, 2318798), (95, 2196756), (114, 1830630), (139, 1501380), (171, 1220420), (180, 1159399), (190, 1098378), (228, 915315), (278, 750690), (285, 732252), (342, 610210), (380, 549189), (417, 500460), (439, 475380), (556, 375345), (570, 366126), (684, 305105), (695, 300276), (834, 250230), (855, 244084), (878, 237690), (1140, 183063), (1251, 166820), (1317, 158460), (1390, 150138), (1668, 125115), (1710, 122042), (1756, 118845), (2085, 100092), (2195, 95076), (2502, 83410), (2634, 79230), (2641, 79020), (2780, 75069), (3420, 61021), (3951, 52820), (4170, 50046), (4390, 47538), (5004, 41705), (5268, 39615), (5282, 39510), (6255, 33364), (6585, 31692), (7902, 26410), (7923, 26340), (8340, 25023), (8341, 25020), (8780, 23769), (10564, 19755), (12510, 16682), (13170, 15846), (13205, 15804)]