19729860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2$

素因数の和:110

約数の個数: 144

約数和(自身を含む): 63213696

約数和(自身を除く): 43483836

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 29, 30, 34, 46, 51, 58, 60, 68, 69, 85, 87, 92, 102, 115, 116, 138, 145, 170, 174, 204, 230, 255, 276, 290, 340, 345, 348, 391, 435, 460, 493, 510, 580, 667, 690, 782, 841, 870, 986, 1020, 1173, 1334, 1380, 1479, 1564, 1682, 1740, 1955, 1972, 2001, 2346, 2465, 2523, 2668, 2958, 3335, 3364, 3910, 4002, 4205, 4692, 4930, 5046, 5865, 5916, 6670, 7395, 7820, 8004, 8410, 9860, 10005, 10092, 11339, 11730, 12615, 13340, 14297, 14790, 16820, 19343, 20010, 22678, 23460, 25230, 28594, 29580, 34017, 38686, 40020, 42891, 45356, 50460, 56695, 57188, 58029, 68034, 71485, 77372, 85782, 96715, 113390, 116058, 136068, 142970, 170085, 171564, 193430, 214455, 226780, 232116, 285940, 290145, 328831, 340170, 386860, 428910, 580290, 657662, 680340, 857820, 986493, 1160580, 1315324, 1644155, 1972986, 3288310, 3945972, 4932465, 6576620, 9864930, 19729860]

約数ペア:

[(1, 19729860), (2, 9864930), (3, 6576620), (4, 4932465), (5, 3945972), (6, 3288310), (10, 1972986), (12, 1644155), (15, 1315324), (17, 1160580), (20, 986493), (23, 857820), (29, 680340), (30, 657662), (34, 580290), (46, 428910), (51, 386860), (58, 340170), (60, 328831), (68, 290145), (69, 285940), (85, 232116), (87, 226780), (92, 214455), (102, 193430), (115, 171564), (116, 170085), (138, 142970), (145, 136068), (170, 116058), (174, 113390), (204, 96715), (230, 85782), (255, 77372), (276, 71485), (290, 68034), (340, 58029), (345, 57188), (348, 56695), (391, 50460), (435, 45356), (460, 42891), (493, 40020), (510, 38686), (580, 34017), (667, 29580), (690, 28594), (782, 25230), (841, 23460), (870, 22678), (986, 20010), (1020, 19343), (1173, 16820), (1334, 14790), (1380, 14297), (1479, 13340), (1564, 12615), (1682, 11730), (1740, 11339), (1955, 10092), (1972, 10005), (2001, 9860), (2346, 8410), (2465, 8004), (2523, 7820), (2668, 7395), (2958, 6670), (3335, 5916), (3364, 5865), (3910, 5046), (4002, 4930), (4205, 4692)]