18085116520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1709}}^1\times {\mathrm{4337}}^1$

素因数の和:6118

約数の個数: 64

約数和(自身を含む): 41392328400

約数和(自身を除く): 23307211880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1709, 2440, 3418, 4337, 6836, 8545, 8674, 13672, 17090, 17348, 21685, 34180, 34696, 43370, 68360, 86740, 104249, 173480, 208498, 264557, 416996, 521245, 529114, 833992, 1042490, 1058228, 1322785, 2084980, 2116456, 2645570, 4169960, 5291140, 7411933, 10582280, 14823866, 29647732, 37059665, 59295464, 74119330, 148238660, 296477320, 452127913, 904255826, 1808511652, 2260639565, 3617023304, 4521279130, 9042558260, 18085116520]

約数ペア:

[(1, 18085116520), (2, 9042558260), (4, 4521279130), (5, 3617023304), (8, 2260639565), (10, 1808511652), (20, 904255826), (40, 452127913), (61, 296477320), (122, 148238660), (244, 74119330), (305, 59295464), (488, 37059665), (610, 29647732), (1220, 14823866), (1709, 10582280), (2440, 7411933), (3418, 5291140), (4337, 4169960), (6836, 2645570), (8545, 2116456), (8674, 2084980), (13672, 1322785), (17090, 1058228), (17348, 1042490), (21685, 833992), (34180, 529114), (34696, 521245), (43370, 416996), (68360, 264557), (86740, 208498), (104249, 173480)]