19783180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{659}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 24568820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 659, 790, 1318, 1501, 1580, 2636, 3002, 3295, 6004, 6590, 7505, 12521, 13180, 15010, 25042, 30020, 50084, 52061, 62605, 104122, 125210, 208244, 250420, 260305, 520610, 989159, 1041220, 1978318, 3956636, 4945795, 9891590, 19783180]

約数ペア:

[(1, 19783180), (2, 9891590), (4, 4945795), (5, 3956636), (10, 1978318), (19, 1041220), (20, 989159), (38, 520610), (76, 260305), (79, 250420), (95, 208244), (158, 125210), (190, 104122), (316, 62605), (380, 52061), (395, 50084), (659, 30020), (790, 25042), (1318, 15010), (1501, 13180), (1580, 12521), (2636, 7505), (3002, 6590), (3295, 6004)]