19947156770

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:432

約数の個数: 128

約数和(自身を含む): 38877511680

約数和(自身を除く): 18930354910

約数列:

[1, 2, 5, 10, 31, 61, 62, 71, 83, 122, 142, 155, 166, 179, 305, 310, 355, 358, 415, 610, 710, 830, 895, 1790, 1891, 2201, 2573, 3782, 4331, 4402, 5063, 5146, 5549, 5893, 8662, 9455, 10126, 10919, 11005, 11098, 11786, 12709, 12865, 14857, 18910, 21655, 21838, 22010, 25315, 25418, 25730, 27745, 29465, 29714, 43310, 50630, 54595, 55490, 58930, 63545, 74285, 109190, 127090, 134261, 148570, 156953, 182683, 268522, 313906, 338489, 359473, 365366, 393979, 460567, 671305, 676978, 718946, 775249, 784765, 787958, 906277, 913415, 921134, 1054847, 1342610, 1550498, 1569530, 1692445, 1797365, 1812554, 1826830, 1969895, 2109694, 2302835, 3384890, 3594730, 3876245, 3939790, 4531385, 4605670, 5274235, 7752490, 9062770, 10548470, 11143663, 22287326, 24032719, 28094587, 32700257, 48065438, 55718315, 56189174, 64345667, 65400514, 111436630, 120163595, 128691334, 140472935, 163501285, 240327190, 280945870, 321728335, 327002570, 643456670, 1994715677, 3989431354, 9973578385, 19947156770]

約数ペア:

[(1, 19947156770), (2, 9973578385), (5, 3989431354), (10, 1994715677), (31, 643456670), (61, 327002570), (62, 321728335), (71, 280945870), (83, 240327190), (122, 163501285), (142, 140472935), (155, 128691334), (166, 120163595), (179, 111436630), (305, 65400514), (310, 64345667), (355, 56189174), (358, 55718315), (415, 48065438), (610, 32700257), (710, 28094587), (830, 24032719), (895, 22287326), (1790, 11143663), (1891, 10548470), (2201, 9062770), (2573, 7752490), (3782, 5274235), (4331, 4605670), (4402, 4531385), (5063, 3939790), (5146, 3876245), (5549, 3594730), (5893, 3384890), (8662, 2302835), (9455, 2109694), (10126, 1969895), (10919, 1826830), (11005, 1812554), (11098, 1797365), (11786, 1692445), (12709, 1569530), (12865, 1550498), (14857, 1342610), (18910, 1054847), (21655, 921134), (21838, 913415), (22010, 906277), (25315, 787958), (25418, 784765), (25730, 775249), (27745, 718946), (29465, 676978), (29714, 671305), (43310, 460567), (50630, 393979), (54595, 365366), (55490, 359473), (58930, 338489), (63545, 313906), (74285, 268522), (109190, 182683), (127090, 156953), (134261, 148570)]