201327920

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{461}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 482594112

約数和(自身を除く): 281266192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 103, 106, 206, 212, 265, 412, 424, 461, 515, 530, 824, 848, 922, 1030, 1060, 1648, 1844, 2060, 2120, 2305, 3688, 4120, 4240, 4610, 5459, 7376, 8240, 9220, 10918, 18440, 21836, 24433, 27295, 36880, 43672, 47483, 48866, 54590, 87344, 94966, 97732, 109180, 122165, 189932, 195464, 218360, 237415, 244330, 379864, 390928, 436720, 474830, 488660, 759728, 949660, 977320, 1899320, 1954640, 2516599, 3798640, 5033198, 10066396, 12582995, 20132792, 25165990, 40265584, 50331980, 100663960, 201327920]

約数ペア:

[(1, 201327920), (2, 100663960), (4, 50331980), (5, 40265584), (8, 25165990), (10, 20132792), (16, 12582995), (20, 10066396), (40, 5033198), (53, 3798640), (80, 2516599), (103, 1954640), (106, 1899320), (206, 977320), (212, 949660), (265, 759728), (412, 488660), (424, 474830), (461, 436720), (515, 390928), (530, 379864), (824, 244330), (848, 237415), (922, 218360), (1030, 195464), (1060, 189932), (1648, 122165), (1844, 109180), (2060, 97732), (2120, 94966), (2305, 87344), (3688, 54590), (4120, 48866), (4240, 47483), (4610, 43672), (5459, 36880), (7376, 27295), (8240, 24433), (9220, 21836), (10918, 18440)]