20503320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2801}}^1$

素因数の和:2876

約数の個数: 64

約数和(自身を含む): 62540640

約数和(自身を除く): 42037320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2801, 3660, 5602, 7320, 8403, 11204, 14005, 16806, 22408, 28010, 33612, 42015, 56020, 67224, 84030, 112040, 168060, 170861, 336120, 341722, 512583, 683444, 854305, 1025166, 1366888, 1708610, 2050332, 2562915, 3417220, 4100664, 5125830, 6834440, 10251660, 20503320]

約数ペア:

[(1, 20503320), (2, 10251660), (3, 6834440), (4, 5125830), (5, 4100664), (6, 3417220), (8, 2562915), (10, 2050332), (12, 1708610), (15, 1366888), (20, 1025166), (24, 854305), (30, 683444), (40, 512583), (60, 341722), (61, 336120), (120, 170861), (122, 168060), (183, 112040), (244, 84030), (305, 67224), (366, 56020), (488, 42015), (610, 33612), (732, 28010), (915, 22408), (1220, 16806), (1464, 14005), (1830, 11204), (2440, 8403), (2801, 7320), (3660, 5602)]