207971980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{4001}}^1$

素因数の和:4146

約数の個数: 48

約数和(自身を含む): 459877824

約数和(自身を除く): 251905844

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 113, 115, 226, 230, 452, 460, 565, 1130, 2260, 2599, 4001, 5198, 8002, 10396, 12995, 16004, 20005, 25990, 40010, 51980, 80020, 92023, 184046, 368092, 452113, 460115, 904226, 920230, 1808452, 1840460, 2260565, 4521130, 9042260, 10398599, 20797198, 41594396, 51992995, 103985990, 207971980]

約数ペア:

[(1, 207971980), (2, 103985990), (4, 51992995), (5, 41594396), (10, 20797198), (20, 10398599), (23, 9042260), (46, 4521130), (92, 2260565), (113, 1840460), (115, 1808452), (226, 920230), (230, 904226), (452, 460115), (460, 452113), (565, 368092), (1130, 184046), (2260, 92023), (2599, 80020), (4001, 51980), (5198, 40010), (8002, 25990), (10396, 20005), (12995, 16004)]