221335020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2801}}^1$

素因数の和:3255

約数の個数: 72

約数和(自身を含む): 673152480

約数和(自身を除く): 451817460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 439, 878, 1317, 1756, 2195, 2634, 2801, 3951, 4390, 5268, 5602, 6585, 7902, 8403, 8780, 11204, 13170, 14005, 15804, 16806, 19755, 25209, 26340, 28010, 33612, 39510, 42015, 50418, 56020, 79020, 84030, 100836, 126045, 168060, 252090, 504180, 1229639, 2459278, 3688917, 4918556, 6148195, 7377834, 11066751, 12296390, 14755668, 18444585, 22133502, 24592780, 36889170, 44267004, 55333755, 73778340, 110667510, 221335020]

約数ペア:

[(1, 221335020), (2, 110667510), (3, 73778340), (4, 55333755), (5, 44267004), (6, 36889170), (9, 24592780), (10, 22133502), (12, 18444585), (15, 14755668), (18, 12296390), (20, 11066751), (30, 7377834), (36, 6148195), (45, 4918556), (60, 3688917), (90, 2459278), (180, 1229639), (439, 504180), (878, 252090), (1317, 168060), (1756, 126045), (2195, 100836), (2634, 84030), (2801, 79020), (3951, 56020), (4390, 50418), (5268, 42015), (5602, 39510), (6585, 33612), (7902, 28010), (8403, 26340), (8780, 25209), (11204, 19755), (13170, 16806), (14005, 15804)]