20512693122025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{7205843}}^1$

素因数の和:7206346

約数の個数: 48

約数和(自身を含む): 28896587375040

約数和(自身を除く): 8383894253015

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 461, 475, 1235, 2305, 5993, 6175, 8759, 11525, 29965, 43795, 113867, 149825, 218975, 569335, 2846675, 7205843, 36029215, 93675959, 136911017, 180146075, 468379795, 684555085, 1779843221, 2341898975, 3321893623, 3422775425, 8899216105, 16609468115, 43184617099, 44496080525, 63115978837, 83047340575, 215923085495, 315579894185, 820507724881, 1079615427475, 1577899470925, 4102538624405, 20512693122025]

約数ペア:

[(1, 20512693122025), (5, 4102538624405), (13, 1577899470925), (19, 1079615427475), (25, 820507724881), (65, 315579894185), (95, 215923085495), (247, 83047340575), (325, 63115978837), (461, 44496080525), (475, 43184617099), (1235, 16609468115), (2305, 8899216105), (5993, 3422775425), (6175, 3321893623), (8759, 2341898975), (11525, 1779843221), (29965, 684555085), (43795, 468379795), (113867, 180146075), (149825, 136911017), (218975, 93675959), (569335, 36029215), (2846675, 7205843)]