996858320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401959}}^1$

素因数の和:402003

約数の個数: 40

約数和(自身を含む): 2392465920

約数和(自身を除く): 1395607600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 401959, 803918, 1607836, 2009795, 3215672, 4019590, 6431344, 8039180, 12460729, 16078360, 24921458, 32156720, 49842916, 62303645, 99685832, 124607290, 199371664, 249214580, 498429160, 996858320]

約数ペア:

[(1, 996858320), (2, 498429160), (4, 249214580), (5, 199371664), (8, 124607290), (10, 99685832), (16, 62303645), (20, 49842916), (31, 32156720), (40, 24921458), (62, 16078360), (80, 12460729), (124, 8039180), (155, 6431344), (248, 4019590), (310, 3215672), (496, 2009795), (620, 1607836), (1240, 803918), (2480, 401959)]