20120521120

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{12163}}^1$

素因数の和:12403

約数の個数: 144

約数和(自身を含む): 55562135328

約数和(自身を除く): 35441614208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 211, 224, 245, 280, 392, 422, 490, 560, 784, 844, 980, 1055, 1120, 1477, 1568, 1688, 1960, 2110, 2954, 3376, 3920, 4220, 5908, 6752, 7385, 7840, 8440, 10339, 11816, 12163, 14770, 16880, 20678, 23632, 24326, 29540, 33760, 41356, 47264, 48652, 51695, 59080, 60815, 82712, 85141, 97304, 103390, 118160, 121630, 165424, 170282, 194608, 206780, 236320, 243260, 330848, 340564, 389216, 413560, 425705, 486520, 595987, 681128, 827120, 851410, 973040, 1191974, 1362256, 1654240, 1702820, 1946080, 2383948, 2566393, 2724512, 2979935, 3405640, 4767896, 5132786, 5959870, 6811280, 9535792, 10265572, 11919740, 12831965, 13622560, 17964751, 19071584, 20531144, 23839480, 25663930, 35929502, 41062288, 47678960, 51327860, 71859004, 82124576, 89823755, 95357920, 102655720, 125753257, 143718008, 179647510, 205311440, 251506514, 287436016, 359295020, 410622880, 503013028, 574872032, 628766285, 718590040, 1006026056, 1257532570, 1437180080, 2012052112, 2515065140, 2874360160, 4024104224, 5030130280, 10060260560, 20120521120]

約数ペア:

[(1, 20120521120), (2, 10060260560), (4, 5030130280), (5, 4024104224), (7, 2874360160), (8, 2515065140), (10, 2012052112), (14, 1437180080), (16, 1257532570), (20, 1006026056), (28, 718590040), (32, 628766285), (35, 574872032), (40, 503013028), (49, 410622880), (56, 359295020), (70, 287436016), (80, 251506514), (98, 205311440), (112, 179647510), (140, 143718008), (160, 125753257), (196, 102655720), (211, 95357920), (224, 89823755), (245, 82124576), (280, 71859004), (392, 51327860), (422, 47678960), (490, 41062288), (560, 35929502), (784, 25663930), (844, 23839480), (980, 20531144), (1055, 19071584), (1120, 17964751), (1477, 13622560), (1568, 12831965), (1688, 11919740), (1960, 10265572), (2110, 9535792), (2954, 6811280), (3376, 5959870), (3920, 5132786), (4220, 4767896), (5908, 3405640), (6752, 2979935), (7385, 2724512), (7840, 2566393), (8440, 2383948), (10339, 1946080), (11816, 1702820), (12163, 1654240), (14770, 1362256), (16880, 1191974), (20678, 973040), (23632, 851410), (24326, 827120), (29540, 681128), (33760, 595987), (41356, 486520), (47264, 425705), (48652, 413560), (51695, 389216), (59080, 340564), (60815, 330848), (82712, 243260), (85141, 236320), (97304, 206780), (103390, 194608), (118160, 170282), (121630, 165424)]