19729678440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{311981}}^1$

素因数の和:312043

約数の個数: 128

約数和(自身を含む): 64692587520

約数和(自身を除く): 44962909080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 31, 34, 40, 51, 60, 62, 68, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 248, 255, 310, 340, 372, 408, 465, 510, 527, 620, 680, 744, 930, 1020, 1054, 1240, 1581, 1860, 2040, 2108, 2635, 3162, 3720, 4216, 5270, 6324, 7905, 10540, 12648, 15810, 21080, 31620, 63240, 311981, 623962, 935943, 1247924, 1559905, 1871886, 2495848, 3119810, 3743772, 4679715, 5303677, 6239620, 7487544, 9359430, 9671411, 10607354, 12479240, 15911031, 18718860, 19342822, 21214708, 26518385, 29014233, 31822062, 37437720, 38685644, 42429416, 48357055, 53036770, 58028466, 63644124, 77371288, 79555155, 96714110, 106073540, 116056932, 127288248, 145071165, 159110310, 164413987, 193428220, 212147080, 232113864, 290142330, 318220620, 328827974, 386856440, 493241961, 580284660, 636441240, 657655948, 822069935, 986483922, 1160569320, 1315311896, 1644139870, 1972967844, 2466209805, 3288279740, 3945935688, 4932419610, 6576559480, 9864839220, 19729678440]

約数ペア:

[(1, 19729678440), (2, 9864839220), (3, 6576559480), (4, 4932419610), (5, 3945935688), (6, 3288279740), (8, 2466209805), (10, 1972967844), (12, 1644139870), (15, 1315311896), (17, 1160569320), (20, 986483922), (24, 822069935), (30, 657655948), (31, 636441240), (34, 580284660), (40, 493241961), (51, 386856440), (60, 328827974), (62, 318220620), (68, 290142330), (85, 232113864), (93, 212147080), (102, 193428220), (120, 164413987), (124, 159110310), (136, 145071165), (155, 127288248), (170, 116056932), (186, 106073540), (204, 96714110), (248, 79555155), (255, 77371288), (310, 63644124), (340, 58028466), (372, 53036770), (408, 48357055), (465, 42429416), (510, 38685644), (527, 37437720), (620, 31822062), (680, 29014233), (744, 26518385), (930, 21214708), (1020, 19342822), (1054, 18718860), (1240, 15911031), (1581, 12479240), (1860, 10607354), (2040, 9671411), (2108, 9359430), (2635, 7487544), (3162, 6239620), (3720, 5303677), (4216, 4679715), (5270, 3743772), (6324, 3119810), (7905, 2495848), (10540, 1871886), (12648, 1559905), (15810, 1247924), (21080, 935943), (31620, 623962), (63240, 311981)]