399687840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{5237}}^1$

素因数の和:5311

約数の個数: 144

約数和(自身を含む): 1389934728

約数和(自身を除く): 990246888

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 53, 60, 72, 80, 90, 96, 106, 120, 144, 159, 160, 180, 212, 240, 265, 288, 318, 360, 424, 477, 480, 530, 636, 720, 795, 848, 954, 1060, 1272, 1440, 1590, 1696, 1908, 2120, 2385, 2544, 3180, 3816, 4240, 4770, 5088, 5237, 6360, 7632, 8480, 9540, 10474, 12720, 15264, 15711, 19080, 20948, 25440, 26185, 31422, 38160, 41896, 47133, 52370, 62844, 76320, 78555, 83792, 94266, 104740, 125688, 157110, 167584, 188532, 209480, 235665, 251376, 277561, 314220, 377064, 418960, 471330, 502752, 555122, 628440, 754128, 832683, 837920, 942660, 1110244, 1256880, 1387805, 1508256, 1665366, 1885320, 2220488, 2498049, 2513760, 2775610, 3330732, 3770640, 4163415, 4440976, 4996098, 5551220, 6661464, 7541280, 8326830, 8881952, 9992196, 11102440, 12490245, 13322928, 16653660, 19984392, 22204880, 24980490, 26645856, 33307320, 39968784, 44409760, 49960980, 66614640, 79937568, 99921960, 133229280, 199843920, 399687840]

約数ペア:

[(1, 399687840), (2, 199843920), (3, 133229280), (4, 99921960), (5, 79937568), (6, 66614640), (8, 49960980), (9, 44409760), (10, 39968784), (12, 33307320), (15, 26645856), (16, 24980490), (18, 22204880), (20, 19984392), (24, 16653660), (30, 13322928), (32, 12490245), (36, 11102440), (40, 9992196), (45, 8881952), (48, 8326830), (53, 7541280), (60, 6661464), (72, 5551220), (80, 4996098), (90, 4440976), (96, 4163415), (106, 3770640), (120, 3330732), (144, 2775610), (159, 2513760), (160, 2498049), (180, 2220488), (212, 1885320), (240, 1665366), (265, 1508256), (288, 1387805), (318, 1256880), (360, 1110244), (424, 942660), (477, 837920), (480, 832683), (530, 754128), (636, 628440), (720, 555122), (795, 502752), (848, 471330), (954, 418960), (1060, 377064), (1272, 314220), (1440, 277561), (1590, 251376), (1696, 235665), (1908, 209480), (2120, 188532), (2385, 167584), (2544, 157110), (3180, 125688), (3816, 104740), (4240, 94266), (4770, 83792), (5088, 78555), (5237, 76320), (6360, 62844), (7632, 52370), (8480, 47133), (9540, 41896), (10474, 38160), (12720, 31422), (15264, 26185), (15711, 25440), (19080, 20948)]