727120

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:223

約数の個数: 40

約数和(自身を含む): 1729800

約数和(自身を除く): 1002680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 149, 244, 298, 305, 488, 596, 610, 745, 976, 1192, 1220, 1490, 2384, 2440, 2980, 4880, 5960, 9089, 11920, 18178, 36356, 45445, 72712, 90890, 145424, 181780, 363560, 727120]

約数ペア:

[(1, 727120), (2, 363560), (4, 181780), (5, 145424), (8, 90890), (10, 72712), (16, 45445), (20, 36356), (40, 18178), (61, 11920), (80, 9089), (122, 5960), (149, 4880), (244, 2980), (298, 2440), (305, 2384), (488, 1490), (596, 1220), (610, 1192), (745, 976)]