20215402545

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{211}}^1\times {\mathrm{1361}}^1$

素因数の和:1631

約数の個数: 96

約数和(自身を含む): 36963851904

約数和(自身を除く): 16748449359

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 211, 247, 285, 361, 633, 741, 1055, 1083, 1235, 1361, 1805, 2743, 3165, 3705, 4009, 4083, 4693, 5415, 6805, 8229, 12027, 13715, 14079, 17693, 20045, 20415, 23465, 25859, 41145, 52117, 53079, 60135, 70395, 76171, 77577, 88465, 129295, 156351, 228513, 260585, 265395, 287171, 336167, 380855, 387885, 491321, 781755, 861513, 990223, 1008501, 1142565, 1435855, 1473963, 1680835, 2456605, 2970669, 3733223, 4307565, 4951115, 5042505, 5456249, 6387173, 7369815, 11199669, 14853345, 16368747, 18666115, 19161519, 27281245, 31935865, 55998345, 70931237, 81843735, 95807595, 103668731, 212793711, 311006193, 354656185, 518343655, 1063968555, 1347693503, 1555030965, 4043080509, 6738467515, 20215402545]

約数ペア:

[(1, 20215402545), (3, 6738467515), (5, 4043080509), (13, 1555030965), (15, 1347693503), (19, 1063968555), (39, 518343655), (57, 354656185), (65, 311006193), (95, 212793711), (195, 103668731), (211, 95807595), (247, 81843735), (285, 70931237), (361, 55998345), (633, 31935865), (741, 27281245), (1055, 19161519), (1083, 18666115), (1235, 16368747), (1361, 14853345), (1805, 11199669), (2743, 7369815), (3165, 6387173), (3705, 5456249), (4009, 5042505), (4083, 4951115), (4693, 4307565), (5415, 3733223), (6805, 2970669), (8229, 2456605), (12027, 1680835), (13715, 1473963), (14079, 1435855), (17693, 1142565), (20045, 1008501), (20415, 990223), (23465, 861513), (25859, 781755), (41145, 491321), (52117, 387885), (53079, 380855), (60135, 336167), (70395, 287171), (76171, 265395), (77577, 260585), (88465, 228513), (129295, 156351)]