220178585

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 317122560

約数和(自身を除く): 96943975

約数列:

[1, 5, 11, 29, 31, 55, 61, 73, 145, 155, 305, 319, 341, 365, 671, 803, 899, 1595, 1705, 1769, 1891, 2117, 2263, 3355, 4015, 4453, 4495, 8845, 9455, 9889, 10585, 11315, 19459, 20801, 22265, 23287, 24893, 48983, 49445, 54839, 65627, 97295, 104005, 116435, 124465, 129137, 138043, 244915, 274195, 328135, 603229, 645685, 690215, 721897, 1420507, 1518473, 3016145, 3609485, 4003247, 7102535, 7592365, 20016235, 44035717, 220178585]

約数ペア:

[(1, 220178585), (5, 44035717), (11, 20016235), (29, 7592365), (31, 7102535), (55, 4003247), (61, 3609485), (73, 3016145), (145, 1518473), (155, 1420507), (305, 721897), (319, 690215), (341, 645685), (365, 603229), (671, 328135), (803, 274195), (899, 244915), (1595, 138043), (1705, 129137), (1769, 124465), (1891, 116435), (2117, 104005), (2263, 97295), (3355, 65627), (4015, 54839), (4453, 49445), (4495, 48983), (8845, 24893), (9455, 23287), (9889, 22265), (10585, 20801), (11315, 19459)]