215438940

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{457}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 686186592

約数和(自身を除く): 470747652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 97, 108, 135, 162, 180, 194, 243, 270, 291, 324, 388, 405, 457, 485, 486, 540, 582, 810, 873, 914, 970, 972, 1164, 1215, 1371, 1455, 1620, 1746, 1828, 1940, 2285, 2430, 2619, 2742, 2910, 3492, 4113, 4365, 4570, 4860, 5238, 5484, 5820, 6855, 7857, 8226, 8730, 9140, 10476, 12339, 13095, 13710, 15714, 16452, 17460, 20565, 23571, 24678, 26190, 27420, 31428, 37017, 39285, 41130, 44329, 47142, 49356, 52380, 61695, 74034, 78570, 82260, 88658, 94284, 111051, 117855, 123390, 132987, 148068, 157140, 177316, 185085, 221645, 222102, 235710, 246780, 265974, 370170, 398961, 443290, 444204, 471420, 531948, 555255, 664935, 740340, 797922, 886580, 1110510, 1196883, 1329870, 1595844, 1994805, 2221020, 2393766, 2659740, 3590649, 3989610, 4787532, 5984415, 7181298, 7979220, 10771947, 11968830, 14362596, 17953245, 21543894, 23937660, 35906490, 43087788, 53859735, 71812980, 107719470, 215438940]

約数ペア:

[(1, 215438940), (2, 107719470), (3, 71812980), (4, 53859735), (5, 43087788), (6, 35906490), (9, 23937660), (10, 21543894), (12, 17953245), (15, 14362596), (18, 11968830), (20, 10771947), (27, 7979220), (30, 7181298), (36, 5984415), (45, 4787532), (54, 3989610), (60, 3590649), (81, 2659740), (90, 2393766), (97, 2221020), (108, 1994805), (135, 1595844), (162, 1329870), (180, 1196883), (194, 1110510), (243, 886580), (270, 797922), (291, 740340), (324, 664935), (388, 555255), (405, 531948), (457, 471420), (485, 444204), (486, 443290), (540, 398961), (582, 370170), (810, 265974), (873, 246780), (914, 235710), (970, 222102), (972, 221645), (1164, 185085), (1215, 177316), (1371, 157140), (1455, 148068), (1620, 132987), (1746, 123390), (1828, 117855), (1940, 111051), (2285, 94284), (2430, 88658), (2619, 82260), (2742, 78570), (2910, 74034), (3492, 61695), (4113, 52380), (4365, 49356), (4570, 47142), (4860, 44329), (5238, 41130), (5484, 39285), (5820, 37017), (6855, 31428), (7857, 27420), (8226, 26190), (8730, 24678), (9140, 23571), (10476, 20565), (12339, 17460), (13095, 16452), (13710, 15714)]