20405979230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{233}}^1\times {\mathrm{613}}^1$

素因数の和:1030

約数の個数: 128

約数和(自身を含む): 45764828928

約数和(自身を除く): 25358849698

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 157, 182, 233, 314, 455, 466, 613, 785, 910, 1099, 1165, 1226, 1570, 1631, 2041, 2198, 2330, 3029, 3065, 3262, 4082, 4291, 5495, 6058, 6130, 7969, 8155, 8582, 10205, 10990, 14287, 15145, 15938, 16310, 20410, 21203, 21455, 28574, 30290, 36581, 39845, 42406, 42910, 55783, 71435, 73162, 79690, 96241, 106015, 111566, 142829, 142870, 182905, 192482, 212030, 256067, 278915, 285658, 365810, 475553, 481205, 512134, 557830, 673687, 714145, 951106, 962410, 999803, 1251133, 1280335, 1347374, 1428290, 1856777, 1999606, 2377765, 2502266, 2560670, 3328871, 3368435, 3713554, 4755530, 4999015, 6255665, 6657742, 6736870, 8757931, 9283885, 9998030, 12511330, 12997439, 16644355, 17515862, 18567770, 22424153, 25994878, 33288710, 43789655, 44848306, 64987195, 87579310, 112120765, 129974390, 156969071, 224241530, 291513989, 313938142, 583027978, 784845355, 1457569945, 1569690710, 2040597923, 2915139890, 4081195846, 10202989615, 20405979230]

約数ペア:

[(1, 20405979230), (2, 10202989615), (5, 4081195846), (7, 2915139890), (10, 2040597923), (13, 1569690710), (14, 1457569945), (26, 784845355), (35, 583027978), (65, 313938142), (70, 291513989), (91, 224241530), (130, 156969071), (157, 129974390), (182, 112120765), (233, 87579310), (314, 64987195), (455, 44848306), (466, 43789655), (613, 33288710), (785, 25994878), (910, 22424153), (1099, 18567770), (1165, 17515862), (1226, 16644355), (1570, 12997439), (1631, 12511330), (2041, 9998030), (2198, 9283885), (2330, 8757931), (3029, 6736870), (3065, 6657742), (3262, 6255665), (4082, 4999015), (4291, 4755530), (5495, 3713554), (6058, 3368435), (6130, 3328871), (7969, 2560670), (8155, 2502266), (8582, 2377765), (10205, 1999606), (10990, 1856777), (14287, 1428290), (15145, 1347374), (15938, 1280335), (16310, 1251133), (20410, 999803), (21203, 962410), (21455, 951106), (28574, 714145), (30290, 673687), (36581, 557830), (39845, 512134), (42406, 481205), (42910, 475553), (55783, 365810), (71435, 285658), (73162, 278915), (79690, 256067), (96241, 212030), (106015, 192482), (111566, 182905), (142829, 142870)]