80667580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18587}}^1$

素因数の和:18634

約数の個数: 48

約数和(自身を含む): 199858176

約数和(自身を除く): 119190596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 18587, 37174, 74348, 92935, 130109, 185870, 260218, 371740, 520436, 576197, 650545, 1152394, 1301090, 2304788, 2602180, 2880985, 4033379, 5761970, 8066758, 11523940, 16133516, 20166895, 40333790, 80667580]

約数ペア:

[(1, 80667580), (2, 40333790), (4, 20166895), (5, 16133516), (7, 11523940), (10, 8066758), (14, 5761970), (20, 4033379), (28, 2880985), (31, 2602180), (35, 2304788), (62, 1301090), (70, 1152394), (124, 650545), (140, 576197), (155, 520436), (217, 371740), (310, 260218), (434, 185870), (620, 130109), (868, 92935), (1085, 74348), (2170, 37174), (4340, 18587)]