2019901970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{1063}}^1$

素因数の和:1299

約数の個数: 64

約数和(自身を含む): 3911604480

約数和(自身を除く): 1891702510

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 137, 146, 190, 274, 365, 685, 730, 1063, 1370, 1387, 2126, 2603, 2774, 5206, 5315, 6935, 10001, 10630, 13015, 13870, 20002, 20197, 26030, 40394, 50005, 77599, 100010, 100985, 145631, 155198, 190019, 201970, 291262, 380038, 387995, 728155, 775990, 950095, 1456310, 1474381, 1900190, 2766989, 2948762, 5533978, 7371905, 10631063, 13834945, 14743810, 21262126, 27669890, 53155315, 106310630, 201990197, 403980394, 1009950985, 2019901970]

約数ペア:

[(1, 2019901970), (2, 1009950985), (5, 403980394), (10, 201990197), (19, 106310630), (38, 53155315), (73, 27669890), (95, 21262126), (137, 14743810), (146, 13834945), (190, 10631063), (274, 7371905), (365, 5533978), (685, 2948762), (730, 2766989), (1063, 1900190), (1370, 1474381), (1387, 1456310), (2126, 950095), (2603, 775990), (2774, 728155), (5206, 387995), (5315, 380038), (6935, 291262), (10001, 201970), (10630, 190019), (13015, 155198), (13870, 145631), (20002, 100985), (20197, 100010), (26030, 77599), (40394, 50005)]