127820420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 343203840

約数和(自身を除く): 215383420

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 79, 91, 98, 127, 130, 140, 158, 182, 196, 245, 254, 260, 316, 364, 395, 455, 490, 508, 553, 635, 637, 790, 889, 910, 980, 1027, 1106, 1270, 1274, 1580, 1651, 1778, 1820, 2054, 2212, 2540, 2548, 2765, 3185, 3302, 3556, 3871, 4108, 4445, 5135, 5530, 6223, 6370, 6604, 7189, 7742, 8255, 8890, 10033, 10270, 11060, 11557, 12446, 12740, 14378, 15484, 16510, 17780, 19355, 20066, 20540, 23114, 24892, 28756, 31115, 33020, 35945, 38710, 40132, 46228, 50165, 50323, 57785, 62230, 70231, 71890, 77420, 80899, 100330, 100646, 115570, 124460, 130429, 140462, 143780, 161798, 200660, 201292, 231140, 251615, 260858, 280924, 323596, 351155, 404495, 491617, 503230, 521716, 652145, 702310, 808990, 913003, 983234, 1006460, 1304290, 1404620, 1617980, 1826006, 1966468, 2458085, 2608580, 3652012, 4565015, 4916170, 6391021, 9130030, 9832340, 12782042, 18260060, 25564084, 31955105, 63910210, 127820420]

約数ペア:

[(1, 127820420), (2, 63910210), (4, 31955105), (5, 25564084), (7, 18260060), (10, 12782042), (13, 9832340), (14, 9130030), (20, 6391021), (26, 4916170), (28, 4565015), (35, 3652012), (49, 2608580), (52, 2458085), (65, 1966468), (70, 1826006), (79, 1617980), (91, 1404620), (98, 1304290), (127, 1006460), (130, 983234), (140, 913003), (158, 808990), (182, 702310), (196, 652145), (245, 521716), (254, 503230), (260, 491617), (316, 404495), (364, 351155), (395, 323596), (455, 280924), (490, 260858), (508, 251615), (553, 231140), (635, 201292), (637, 200660), (790, 161798), (889, 143780), (910, 140462), (980, 130429), (1027, 124460), (1106, 115570), (1270, 100646), (1274, 100330), (1580, 80899), (1651, 77420), (1778, 71890), (1820, 70231), (2054, 62230), (2212, 57785), (2540, 50323), (2548, 50165), (2765, 46228), (3185, 40132), (3302, 38710), (3556, 35945), (3871, 33020), (4108, 31115), (4445, 28756), (5135, 24892), (5530, 23114), (6223, 20540), (6370, 20066), (6604, 19355), (7189, 17780), (7742, 16510), (8255, 15484), (8890, 14378), (10033, 12740), (10270, 12446), (11060, 11557)]