201720656

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^2$

素因数の和:252

約数の個数: 60

約数和(自身を含む): 412741812

約数和(自身を除く): 211021156

約数列:

[1, 2, 4, 8, 16, 41, 61, 71, 82, 122, 142, 164, 244, 284, 328, 488, 568, 656, 976, 1136, 2501, 2911, 4331, 5002, 5041, 5822, 8662, 10004, 10082, 11644, 17324, 20008, 20164, 23288, 34648, 40016, 40328, 46576, 69296, 80656, 177571, 206681, 307501, 355142, 413362, 615002, 710284, 826724, 1230004, 1420568, 1653448, 2460008, 2841136, 3306896, 4920016, 12607541, 25215082, 50430164, 100860328, 201720656]

約数ペア:

[(1, 201720656), (2, 100860328), (4, 50430164), (8, 25215082), (16, 12607541), (41, 4920016), (61, 3306896), (71, 2841136), (82, 2460008), (122, 1653448), (142, 1420568), (164, 1230004), (244, 826724), (284, 710284), (328, 615002), (488, 413362), (568, 355142), (656, 307501), (976, 206681), (1136, 177571), (2501, 80656), (2911, 69296), (4331, 46576), (5002, 40328), (5041, 40016), (5822, 34648), (8662, 23288), (10004, 20164), (10082, 20008), (11644, 17324)]