199920720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{11411}}^1$

素因数の和:11500

約数の個数: 80

約数和(自身を含む): 628299072

約数和(自身を除く): 428378352

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 73, 80, 120, 146, 219, 240, 292, 365, 438, 584, 730, 876, 1095, 1168, 1460, 1752, 2190, 2920, 3504, 4380, 5840, 8760, 11411, 17520, 22822, 34233, 45644, 57055, 68466, 91288, 114110, 136932, 171165, 182576, 228220, 273864, 342330, 456440, 547728, 684660, 833003, 912880, 1369320, 1666006, 2499009, 2738640, 3332012, 4165015, 4998018, 6664024, 8330030, 9996036, 12495045, 13328048, 16660060, 19992072, 24990090, 33320120, 39984144, 49980180, 66640240, 99960360, 199920720]

約数ペア:

[(1, 199920720), (2, 99960360), (3, 66640240), (4, 49980180), (5, 39984144), (6, 33320120), (8, 24990090), (10, 19992072), (12, 16660060), (15, 13328048), (16, 12495045), (20, 9996036), (24, 8330030), (30, 6664024), (40, 4998018), (48, 4165015), (60, 3332012), (73, 2738640), (80, 2499009), (120, 1666006), (146, 1369320), (219, 912880), (240, 833003), (292, 684660), (365, 547728), (438, 456440), (584, 342330), (730, 273864), (876, 228220), (1095, 182576), (1168, 171165), (1460, 136932), (1752, 114110), (2190, 91288), (2920, 68466), (3504, 57055), (4380, 45644), (5840, 34233), (8760, 22822), (11411, 17520)]