20719260

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 192

約数和(自身を含む): 71245440

約数和(自身を除く): 50526180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 37, 45, 51, 54, 60, 61, 68, 74, 85, 90, 102, 108, 111, 122, 135, 148, 153, 170, 180, 183, 185, 204, 222, 244, 255, 270, 305, 306, 333, 340, 366, 370, 444, 459, 510, 540, 549, 555, 610, 612, 629, 666, 732, 740, 765, 915, 918, 999, 1020, 1037, 1098, 1110, 1220, 1258, 1332, 1530, 1647, 1665, 1830, 1836, 1887, 1998, 2074, 2196, 2220, 2257, 2295, 2516, 2745, 3060, 3111, 3145, 3294, 3330, 3660, 3774, 3996, 4148, 4514, 4590, 4995, 5185, 5490, 5661, 6222, 6290, 6588, 6660, 6771, 7548, 8235, 9028, 9180, 9333, 9435, 9990, 10370, 10980, 11285, 11322, 12444, 12580, 13542, 15555, 16470, 16983, 18666, 18870, 19980, 20313, 20740, 22570, 22644, 27084, 27999, 28305, 31110, 32940, 33855, 33966, 37332, 37740, 38369, 40626, 45140, 46665, 55998, 56610, 60939, 62220, 67710, 67932, 76738, 81252, 84915, 93330, 101565, 111996, 113220, 115107, 121878, 135420, 139995, 153476, 169830, 186660, 191845, 203130, 230214, 243756, 279990, 304695, 339660, 345321, 383690, 406260, 460428, 559980, 575535, 609390, 690642, 767380, 1035963, 1151070, 1218780, 1381284, 1726605, 2071926, 2302140, 3453210, 4143852, 5179815, 6906420, 10359630, 20719260]

約数ペア:

[(1, 20719260), (2, 10359630), (3, 6906420), (4, 5179815), (5, 4143852), (6, 3453210), (9, 2302140), (10, 2071926), (12, 1726605), (15, 1381284), (17, 1218780), (18, 1151070), (20, 1035963), (27, 767380), (30, 690642), (34, 609390), (36, 575535), (37, 559980), (45, 460428), (51, 406260), (54, 383690), (60, 345321), (61, 339660), (68, 304695), (74, 279990), (85, 243756), (90, 230214), (102, 203130), (108, 191845), (111, 186660), (122, 169830), (135, 153476), (148, 139995), (153, 135420), (170, 121878), (180, 115107), (183, 113220), (185, 111996), (204, 101565), (222, 93330), (244, 84915), (255, 81252), (270, 76738), (305, 67932), (306, 67710), (333, 62220), (340, 60939), (366, 56610), (370, 55998), (444, 46665), (459, 45140), (510, 40626), (540, 38369), (549, 37740), (555, 37332), (610, 33966), (612, 33855), (629, 32940), (666, 31110), (732, 28305), (740, 27999), (765, 27084), (915, 22644), (918, 22570), (999, 20740), (1020, 20313), (1037, 19980), (1098, 18870), (1110, 18666), (1220, 16983), (1258, 16470), (1332, 15555), (1530, 13542), (1647, 12580), (1665, 12444), (1830, 11322), (1836, 11285), (1887, 10980), (1998, 10370), (2074, 9990), (2196, 9435), (2220, 9333), (2257, 9180), (2295, 9028), (2516, 8235), (2745, 7548), (3060, 6771), (3111, 6660), (3145, 6588), (3294, 6290), (3330, 6222), (3660, 5661), (3774, 5490), (3996, 5185), (4148, 4995), (4514, 4590)]