203270720

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^2\times {\mathrm{661}}^1$

素因数の和:740

約数の個数: 84

約数和(自身を含む): 500912892

約数和(自身を除く): 297642172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 661, 961, 992, 1240, 1322, 1922, 1984, 2480, 2644, 3305, 3844, 4805, 4960, 5288, 6610, 7688, 9610, 9920, 10576, 13220, 15376, 19220, 20491, 21152, 26440, 30752, 38440, 40982, 42304, 52880, 61504, 76880, 81964, 102455, 105760, 153760, 163928, 204910, 211520, 307520, 327856, 409820, 635221, 655712, 819640, 1270442, 1311424, 1639280, 2540884, 3176105, 3278560, 5081768, 6352210, 6557120, 10163536, 12704420, 20327072, 25408840, 40654144, 50817680, 101635360, 203270720]

約数ペア:

[(1, 203270720), (2, 101635360), (4, 50817680), (5, 40654144), (8, 25408840), (10, 20327072), (16, 12704420), (20, 10163536), (31, 6557120), (32, 6352210), (40, 5081768), (62, 3278560), (64, 3176105), (80, 2540884), (124, 1639280), (155, 1311424), (160, 1270442), (248, 819640), (310, 655712), (320, 635221), (496, 409820), (620, 327856), (661, 307520), (961, 211520), (992, 204910), (1240, 163928), (1322, 153760), (1922, 105760), (1984, 102455), (2480, 81964), (2644, 76880), (3305, 61504), (3844, 52880), (4805, 42304), (4960, 40982), (5288, 38440), (6610, 30752), (7688, 26440), (9610, 21152), (9920, 20491), (10576, 19220), (13220, 15376)]