257720940

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2791}}^1$

素因数の和:2834

約数の個数: 144

約数和(自身を含む): 853681920

約数和(自身を除く): 595960980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 243, 270, 285, 324, 342, 380, 405, 486, 513, 540, 570, 684, 810, 855, 972, 1026, 1140, 1215, 1539, 1620, 1710, 2052, 2430, 2565, 2791, 3078, 3420, 4617, 4860, 5130, 5582, 6156, 7695, 8373, 9234, 10260, 11164, 13955, 15390, 16746, 18468, 23085, 25119, 27910, 30780, 33492, 41865, 46170, 50238, 53029, 55820, 75357, 83730, 92340, 100476, 106058, 125595, 150714, 159087, 167460, 212116, 226071, 251190, 265145, 301428, 318174, 376785, 452142, 477261, 502380, 530290, 636348, 678213, 753570, 795435, 904284, 954522, 1060580, 1130355, 1356426, 1431783, 1507140, 1590870, 1909044, 2260710, 2386305, 2712852, 2863566, 3181740, 3391065, 4295349, 4521420, 4772610, 5727132, 6782130, 7158915, 8590698, 9545220, 12886047, 13564260, 14317830, 17181396, 21476745, 25772094, 28635660, 42953490, 51544188, 64430235, 85906980, 128860470, 257720940]

約数ペア:

[(1, 257720940), (2, 128860470), (3, 85906980), (4, 64430235), (5, 51544188), (6, 42953490), (9, 28635660), (10, 25772094), (12, 21476745), (15, 17181396), (18, 14317830), (19, 13564260), (20, 12886047), (27, 9545220), (30, 8590698), (36, 7158915), (38, 6782130), (45, 5727132), (54, 4772610), (57, 4521420), (60, 4295349), (76, 3391065), (81, 3181740), (90, 2863566), (95, 2712852), (108, 2386305), (114, 2260710), (135, 1909044), (162, 1590870), (171, 1507140), (180, 1431783), (190, 1356426), (228, 1130355), (243, 1060580), (270, 954522), (285, 904284), (324, 795435), (342, 753570), (380, 678213), (405, 636348), (486, 530290), (513, 502380), (540, 477261), (570, 452142), (684, 376785), (810, 318174), (855, 301428), (972, 265145), (1026, 251190), (1140, 226071), (1215, 212116), (1539, 167460), (1620, 159087), (1710, 150714), (2052, 125595), (2430, 106058), (2565, 100476), (2791, 92340), (3078, 83730), (3420, 75357), (4617, 55820), (4860, 53029), (5130, 50238), (5582, 46170), (6156, 41865), (7695, 33492), (8373, 30780), (9234, 27910), (10260, 25119), (11164, 23085), (13955, 18468), (15390, 16746)]