20175724900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{349}}^1\times {\mathrm{4159}}^1$

素因数の和:4661

約数の個数: 72

約数和(自身を含む): 44233280000

約数和(自身を除く): 24057555100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 349, 556, 695, 698, 1390, 1396, 1745, 2780, 3475, 3490, 4159, 6950, 6980, 8318, 8725, 13900, 16636, 17450, 20795, 34900, 41590, 48511, 83180, 97022, 103975, 194044, 207950, 242555, 415900, 485110, 578101, 970220, 1156202, 1212775, 1451491, 2312404, 2425550, 2890505, 2902982, 4851100, 5781010, 5805964, 7257455, 11562020, 14452525, 14514910, 28905050, 29029820, 36287275, 57810100, 72574550, 145149100, 201757249, 403514498, 807028996, 1008786245, 2017572490, 4035144980, 5043931225, 10087862450, 20175724900]

約数ペア:

[(1, 20175724900), (2, 10087862450), (4, 5043931225), (5, 4035144980), (10, 2017572490), (20, 1008786245), (25, 807028996), (50, 403514498), (100, 201757249), (139, 145149100), (278, 72574550), (349, 57810100), (556, 36287275), (695, 29029820), (698, 28905050), (1390, 14514910), (1396, 14452525), (1745, 11562020), (2780, 7257455), (3475, 5805964), (3490, 5781010), (4159, 4851100), (6950, 2902982), (6980, 2890505), (8318, 2425550), (8725, 2312404), (13900, 1451491), (16636, 1212775), (17450, 1156202), (20795, 970220), (34900, 578101), (41590, 485110), (48511, 415900), (83180, 242555), (97022, 207950), (103975, 194044)]